Find out a mistake and correct it 1. My friend didn't drind any beer since we came to live here
2. we have written to each other when we were in primary school
3. recently, the island of hawaii had been the subject of instensive research on the occurrence of earthquakes
4. I'd like buying some earings like yours

Memories of a memory have you ever witnessed something amazing, shocking or surprising and found when describing the event that your story seems to change the more you tell it? have you ever experienced a time when you couldn't really describe something you saw in a way that others could understand? if so, you may understand why some experts think eyewitness testimony is unreliable as evidence in scientific inquiries and trials. new insights into human memory suggest human memories are really a mixture of many non-factual things. first, memory is vague. imagine your room at home or a classroom you see every day. most likely, you could describe the room very generally. you could name the color of the walls, the floors, the decorations. but the image you describe will never be as specific or detailed as if you were looking at the actual room. memory tends to save a blurry image of what we have seen rather than specific details. so when a witness tries to identify someone, her brain may recall that the person was tall, but not be able to say how tall when faced with several tall people. there are lots of different kinds of "tall." second, memory uses general knowledge to fill in gaps. our brains reconstruct events and scenes when we remember something. to do this, our brains use other memories and other stories when there are gaps. for example, one day at a library you go to quite frequently, you witness an argument between a library patron and one of the librarians. later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk rather than the actual participant simply because it is recreating a familiar scene. in effect, your brain is combining memories to you tell the story. third, your memory changes over time. it also changes the more you retell the story. documented cases have shown eyewitnesses adding detail to testimony that could not have been known at the time of the event. research has also shown that the more a witness's account is told, the less accurate it is. you may have noticed this yourself. the next time you are retelling a story, notice what you add, or what your brain wants to add, to the account. you may also notice that you drop certain details from previous tellings of the story. with individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true. did you really break your mother's favorite vase when you were three? was that really your father throwing rocks into the river with you when you were seven? the human brain may be quite remarkable indeed. when it comes to memory, however, we may want to start carrying video cameras if we want to record the true picture. part a and part b below contain one fill-in-the-blank to be used for all three question responses. your complete response must be in the format a, b, c including the letter choice, commas, and a space after the commas. part a: which of the following best explains why memories from childhood are unreliable? fill in blank 1 using a, b, or c. our brains add details and general knowledge to childhood memories. our brains are not as reliable as video cameras are. our brains create new stories to make the past more interesting. part b select one quotation from the text that supports your answer to part a. add your selection to blank 1 using e, f, or g. but the image you describe will never be as specific or detailed as if you were looking at the actual room. when a witness tries to identify someone, her brain may recall that the person was tall, but not be able to say how tall. to do this, our brains use other memories and other stories when there are gaps. select one quotation from the text that supports your answer to part a. add your selection to blank 1 using h, i, or j. documented cases have shown eyewitnesses adding detail to testimony that could not have been known at the time of the event. with individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true. when it comes to memory, however, we may want to start carrying video cameras if we want to record the true picture answer for blank 1:

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

(20 points) passage: this year will be a record-breaking year for storms 1it looks like 2012 will be a year for the record books. thunderstorms, hurricanes, and tornadoes have increased across the country. the storms' high winds and heavy rains are making history. early tornado and hurricane seasons 2in march, not usually a busy month for tornadoes, the south and midwest had a large number of twisters. warm weather made conditions ripe for the creation of tornadoes. on some days, twisters dropped from the sky by the dozen. 3hurricane season also came early. two tropical storms hit the southeast in may. two more strong storms followed in june. severe thunderstorms 4many states that have escaped tornadoes and hurricanes have had severe thunderstorms. these giant storms dumped several inches of rain and caused flooding across the northeast and midwest. 5the end of hurricane season is months away, and this year's storm count and rainfall amounts could leave 2011 in the dust. forecasters say the wet, windy weather might stick around until fall. labor day parade rained out 6there is no joy in green town, where the annual labor day parade was called off because of heavy rain. the town's mayor says the parade hasn't been rained out in fifty years. 7a strong band of thunderstorms hit green town on sunday. more than two inches of rain fell each hour. by monday morning, main street looked more like a creek than a parade route. mayor nora bell said she had to call off the parade. "the heavy rains have created a serious safety issue in green town," she said. 8the loss of the labor day parade is green town's second disappointment this summer. in may, the memorial day parade was also called off because of rain. "this must be one of the wettest summers in history," mayor bell said. 9according to the national weather service, mayor bell is right. this summer will break rainfall records in green town and across the country. question: who would obtain the most useful information from the passage? a) someone planning a holiday picnic. b) someone interested in documenting annual meteorological patterns. c) an advocate for the green town labor day parade. d) someone who wishes to do research on the alleged truth of the "global warming" phenomenon.