单选题：— How long do you think it will be _____ China sends a manne..

题目分类：从属连词
题目类型：单选题
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— How long do you think it will be _____ China sends a manned spaceship to the moon?
— Perhaps two or three years.
A. when
B. until
C. that
D. before

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My book, The House of Hales, is missing. Who ________ have ..

My book, The House of Hales, is missing. Who ________ have taken it?A．needB．mustC．shouldD．could

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Since nobody gave him any help，he ________ have done the re..

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用所给单词的适当形式填空。 1. He was a natural leader, and ..

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_____ you grow older, you'll know better and better about y..

_____ you grow older, you'll know better and better about yourself.A. Since B. AsC. Before D. So

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When I lived with my roommates in the university, we ______..

When I lived with my roommates in the university, we ________ often talk into the night.A．mightB．couldC．shouldD．would

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