题目内容

Michael used to look hurt and surprised when ______.

A. scolding
B. to scold
C. having been scolded
D. scolded

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After the Arab states won independence, great emphasis was laid on expanding education, with girls as well boys _________________ to go to school.

A. to be encouraged
B.been encouraged
C. being encouraged
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A.broadcasting
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将二极管的正极接电路的（）电位，负极接（）电位，此时二极管反向偏置，二极管呈现较（）电阻，几乎没有电流通过，这种状态称为二极管的反向（）状态。