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Be careful _______ what you are doing. A in B with C of

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3 | 2010-12-28 22:01:27 | 显示全部楼层 |阅读模式

1.be careful + about/of+ 名词注意...的 eg.She is careful about/of her food.=She is careful about/of what she eats. 她很注意饮食。（后面界wh- 从句时，多省略介词） 2.be careful + with + 名词注意处理...eg.Be careful with the vase; it's valuable.那花瓶很贵，要小心处理.所以选 C

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