The paint is still wet. ______!

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问题 The paint is still wet. ______!

选项 A、Be not sure to touch it
B、Be sure not to touch it
C、Be sure to not touch it
D、Don’t be sure to touch it

答案B

解析 be sure to do sth.表示“一定,千万”。它的否定是在不定式前加not。
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