题目内容
【题目】When the boss entered the room, the workers were pretending ____ hard at their machines.
A.to workB.to be workingC.to have workedD.working
【答案】B
【解析】
考查不定式的进行时。句意:当老板进来时,员工们假装正在机器上努力的工作。本题考查短语pretend to do sth假装做某事,结合句意可知“假装工作”的动作正在发生,故用不定式的进行时to be doing,故选B项。
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