题目内容

The psychologists______study the nature of sleep have made important discoveries.

A. that
B. when
C. they
D. why

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Be sure to follow the instructions______are given at the top of the page.

A. who
B. that
C. it
D. where

Dr. Fields,______lectured at Browning Hall last night, predicted another earthquake.

A. which
B. what
C. he
D. who

But for the massive injection of public funds, the whole industry______.

A. would collapse
B. would have collapsed
C. wouldn't collapse
D. wouldn't have collapsed

Did you get the message______concerned the special meeting？

A. it
B. what
C. which
D. where