The students pretended_______ attentively when the teacher came in.A．to learnB．l_刷题宝

题干

The students pretended_______ attentively when the teacher came in.

A．to learn

B．learning

C．and learned

D．to be learning

上一题下一题 0.64难度单项选择更新时间:2012-04-05 01:06:00

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