You ______ phone him if you want to, but you ______. He is sure to phone you.
A.may; mustn'tB.have to; needn'tC.can; doesn't needD.can; needn't在线课程D
can表示许可；needn't (＝don't have to) 意为“不必要”。
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You phone him if you want to, but you . He is sure to phone you.A.may; mustn'tB.have to; needn&
编辑：chaxungu时间：2026-04-24 13:01:03分类：高中英语题库
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