题目内容

To the scientists delight, their efforts have increased peoples _______of the importance of saving water.

A. awareness
B. commitment
C. agreement
D. response

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Toms school was on the other side of the road, so he was told to watch out for cars whent __________he street.

A. crossing
B. cross
C. crossed
D. to cross

It was with great joy _______ he knew that his GMAT score was 670, high enough teapply to a top university of business.

A. when
B. with
C. what
D. that

The word 'chronology' contains _______morphemes.

A. 4
B. 3
C. 2
D. 5

_______there is fresh air, there is oxygen.

A. Wherever
B. Whenever
C. Unless
D. Whether

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