When the boss came in, these workers pretended to carefully.A. workingB. be working C. wor

发布时间：2020-08-17 00:35:30

When the boss came in, these workers pretended to     carefully.
A. working
B. be working
C. work
D. have been working

网友回答

A. working
(答案→)B. be working
C. work
D. have been working
解析：考查pretend的用法：pretend to be doing假装正在做，句意是：当老板进来时，他假装在认真工作。选B。
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