题目内容

As there was a power cut in the hospital, the surgeon had to call______the operation.

A. on
B. off
C. out
D. for

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While Stella was in Paris, she______a lot of French.

A. got around
B. took in
C. put away
D. picked up

Although they are poor, they have______up five children very well.

A. grown
B. taken
C. brought
D. pulled

The above discussion has______the rise of US imperialism at the expense of its competitors.

A. centered on
B. centered at
C. centered towards
D. centered for

How many TV sets have they exported to Europe this year？

A. 30，000
B. 60，000
C. 90，000