How did dinosaurs ____________ birds?

Some people believe that birds ______ from dinosaurs.

The _______ of the dinosaurs occurred millions of years ago.

What are the possible reasons why the dinosaurs disappeared?

No one has come up with a _____________ explanation of why dinosaurs die out

The world of dinosaurs is very familiar to the general population. Which of the following sentences can support this main idea?

Which of the followings can be called science fiction A: Human beings living together with dinosaurs. B: Description of universe. C: Clone. D: Story of God.

(It is) believed that some dinosaurs were intelligent, (ability) to perform complex activities,and perhaps (even) capable of (social) behavior. A: It is B: ability C: even D: social

What is the video clip about? A: It is about the dinosaurs. B: It is about how to catch a fish. C: It is about a kind of fish that lived in the deep ocean. D: It is about the mammals.(哺乳类动物)

The teacher asked the students () . A: if they were interested in dinosaurs B: when was Albert Einstein born C: what they will do with the computers D: how many trees they have planted