Many kinds of dinosaurs’ bones【小题1】(find) recently by Chinese scientists in Nanyang, Henan Province. When the 【小题2】(scientist) inspected the bones, they were surprised 【小题3】(spot) these dinosaurs could not only run like the others but also climb the trees.

Dinosaurs died out 【小题4】(sudden) around 60million years ago. Some scientists think 【小题5】came after a(n)【小题6】(expect) incident when a huge rock from space hit the earth 【小题7】 put too much dust into the air. Others think the earth got too hot for the dinosaurs to live on any 【小题8】(much). Nobody knows for sure 【小题9】and how dinosaurs 【小题10】(disappear) from the earth in such a short time.