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-Why haven’t we met Lisa lately? -She is kept busy a business trip to Korea． [ ]

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-Why haven’t we met Lisa lately? -She is kept busy a business trip to Korea． [ ]

－Why haven’t we met Lisa lately?

－She is kept busy ________ a business trip to Korea．

[]A．

to plan

B．

planning

C．

with planning

D．

by planning

试题答案

答案：B

解析：

be busy doing sth．(忙于做某事)是固定短语。

标签：shelatelykeptislisa

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