Helen go on the trip with us, but she isn’t quite sure yet. A. shallB. mustC. mayD. can

发布时间：2020-08-17 11:28:18

Helen      go on the trip with us, but she isn’t quite sure yet.
A. shall
B. must
C. may
D. can

网友回答

A. shall
B. must
(答案→)C. may
D. can
解析：may也许，口气不肯定，另外后句的she isn’t puite sure yet.已给出暗示。shall用在陈述句中与第二、三人称连用表示允诺，命令等。must:必须can:能够，也可表“推测”但常用于否定句。
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