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用适当的副词或介词填空. When we are crossing the streets, we must watch out the cars.

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用适当的副词或介词填空. When we are crossing the streets, we must watch out the cars.

用适当的副词或介词填空。

When we are crossing the streets, we must watch out ________ the cars.

试题答案

答案:for

解析:

根据常识,过马路当然要小心。watch out for意为“当心;注意;小心”。