Don’t all stand up together! ________, please.A.Each at one timeB.One at a timeC
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Don’t all stand up together! ________, please.A.Each at one time | B.One at a time | C.One by one time | D.One for each time |
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答案
B |
解析
句意:不要都站起来,请每次站起一个。at a time一次,每次,at one time一度,曾经,所以选B。 |
举一反三
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