题目内容

(   ) 3. Scientists are doing experiments in order      more of Mars.

A. exploring    B. to explore
C. explore    D. to exploring

3. B in order to do sth.意为"为了 

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5. Her father bought her a skirt. It cost 100 yuan.

1. No one knows      (确切) how old the man is.

1.___________ (据……所报道）this report, most women live longer than men.

3. —你相信其他星球上有生命吗？ —恐怕没有。

―Do you       there is life on other planets?

--              

2. Astronauts        China, the United States and Russia will take part       the space flight.

4. He took that book home.

That book        home by him.

1. We were      ( real) moved by what he said.

2. This kind of backpack      ( design) for students is very popular.

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