4．The police have narrowed down their list of suspects.

3．I forbid you to go swimming.

2．The plan was viewed favorably.

5．所有这一切都是要偿还的。(be to do)

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答案：1.Standing on the top of the mountain，we can see the surrounding hills.

4．警方已经缩小了嫌疑犯的范围。(narrow)

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3．我不准你去游泳。(forbid)

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2．这项计划是受到称赞的。(view)

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1．站在山顶，我们能看到周围的小山。(surround)

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8．He narrowed his eyes________her.

A．into　 B．at　 C．with　 D．for

解析：句意：“他眯起眼看她。”此处考查narrow(v.)“使眼睛变窄，即眯起眼”，故答案是B。

答案：B

7．Peter________be really difficult at times even though he’s a nice person in general.

A．shall　 B．should　 C．can　 D．must

解析：句意为“尽管Peter一般情况下是个很友好的人，但有时候他也可能会变得难以共处”。考查情态动词表推测，注意题干中at times表示“有时候”，是信息提示，与后面的in general(通常，一般情况下)形成对比，can用于肯定陈述句表示一时的可能性。A、B、D三项均无此用法。

答案：C