Helen go on the trip with us, but she isn't quite sure yet. [ ]A. shall B. must
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Helen _____ go on the trip with us, but she isn't quite sure yet. [ ]A. shall
B. must
C. may
D. can
试题答案
C
Helen _____ go on the trip with us, but she isn't quite sure yet. [ ]A. shall
B. must
C. may
D. can
C