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It is dangerous to allow the children who are ________ swimming in the river.
A.enough old to goB.not old enough to go
C.not enough old to goD.not old enough going
B
考查enough的位置。首先否定词not应跟在be动词后面,故排除A;enough修饰形容词应放在形容词的后面,故排除C;enough to足够…以至于…,不定式做结果状语。故选B。
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