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You can only catch one ball . [ ] A. at times B. at a time C. at one time D. at

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You can only catch one ball . [ ] A. at times B. at a time C. at one time D. at

You can only catch one ball ________.

[]A.

at times

B.

at a time

C.

at one time

D.

at all times

试题答案

答案:B

解析:

这个句子的意思是“你一次只能抓住一个球”。at a time“每次”;at times“有时候”;at one time“曾经”;at all times“总是”。