The book is borrowed from the library .You ___your children put dots and
lines here and there.
A.shouldn’t be letting B.needn’t have let
C.ought not to have let to D.mustn’t have let
为什么
人气：295 ℃ 时间：2020-06-08 05:03:35
解答
A.shouldn’t be letting 可以填 shouldn’t let.这里的进行时态是指always,一直不能这样.
如：He is always eating.含有告戒,警告等意思.
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