Alice was supposed _____ at home, but her mother found her surfing the Internet．_刷题宝

题干

Alice was supposed _____ at home, but her mother found her surfing the Internet．

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

上一题下一题 0.64难度单项选择更新时间:2012-12-24 07:49:41

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