题目内容
Little Tom has got a lot of birthday presents, but he isn’t able to take all of them ___.A.on time | B.at a time | C.at same time | D.from time to time |
B解析:
at a time 表示的是一次,故选B
at a time 表示的是一次,故选B
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题目内容
Little Tom has got a lot of birthday presents, but he isn’t able to take all of them ___.A.on time | B.at a time | C.at same time | D.from time to time |