题目内容

There is a new problem involved in the popularity of private cars ______ road condition need ________.

A. which; to be improved
B. that; to be improved
C. Where; improving
D. when; improving

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_____ we have achieved is attributed to the guidance of our parents.

A. Whoever
B. Whatever
C. However
D. Whichever

Although Mary is satisfied with her success, she wonders ______ will happen to her private life.

A. how
B. who
C. what
D. that

______ we will have a good harvest this year is still unkown.

A. Whether
B. If
C. Which
D. That

The teacher asked him if ______ was really true.

A. What had he said
B. what he had said
C. that had he said
D. Where has he gone

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