When can a verb be called a sentence by itself

Analyze lowell’s use of symbolism in the poem “for the union dead.” explain how lowell’s use of symbolism to develop one or more themes in the text.

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.

Which from of the moderifier best completes the sentence of the 10 students? malcolm did on the quiz. best more better bestest better