11. the dishes on the counter carefully stacked. (1 point)
is
are
12. the maximum number of passengers posted in the front of the bus. (1 point)
is
are
13. more than one-half of sal’s profits spent on camera equipment. (1 point)
was
were
14. tina, not her roommates, studying in the library. (1 point)
was
were
15. the oleander, like many other common shrubs, poisonous leaves. (1 point)
has
have

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.