The workers are busy______models for the exhibition.A、to makeB、in makingC、bein

游客2025-03-04 6

问题 The workers are busy______models for the exhibition.

选项 A、to make
B、in making
C、being making
D、making

答案 D

解析本题考查busy的用法。be busy doing sth. , 忙于做……。故选D。

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