题目内容
(请给出正确答案)
[主观题]
He ______ reading silently at first.A.used not toB.didn't use toC.was not used toD.is not
He ______ reading silently at first.
A.used not to
B.didn't use to
C.was not used to
D.is not used
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He ______ reading silently at first.
A.used not to
B.didn't use to
C.was not used to
D.is not used
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