Choose the sentence with a conjunction that correctly coordinates the two independent clauses and demonstrates one event occurring before another event can occur. a) we may go to the movies later, or i need to do my homework first. b) we may go to the movies later, but i need to do my homework first. c) we may go to the movies later, and i need to do my homework first. d) we may go to the movies later, because i need to do my homework first.

The sentence with a conjunction that correctly coordinates the two independent clauses and demonstrates one event ocurring before another event can occur is B) "We may go to the movies later, but I need to do my homework first".

This sentence contains the coordinating conjunction "but", which is joining two independent clauses, that is, clauses that can stand on its own since they include all the information that is necessary to become complete sentences. The two independent clauses in this sentence are "We may go to the movies later" and "I need to do my homework first". Moreover, the word "first" in the second clause indicates that the event described in this clause occurrs before the event described in the first clause. This is also indicated by the word "later" in the first clause. Furthermore, "but" suggests the existence of the speaker's condition of doing homework before going to the movies.

the answer is b. i read this story before.