Read the sentence below and complete the instruction that follows. after being recognized as players of an official sport in 2001, ultimate frisbee athletes have embraced many new competitive opportunities. select the answer that identifies the type of clause used in the sentence and the word being modified. adverb clause; have embraced adverb clause; recognized adjective clause; sport adjective clause; athletes

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.