He pretended when his mother stepped into his room.A．to studyB．studyingC．_刷题宝

题干

He pretended when his mother stepped into his room.

A．to study	B．studying
C．to be studying	D．to have studied

上一题下一题 0.65难度单项选择更新时间:2018-10-30 07:33:09

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