问题
选择题
—Sally, may I borrow your notebook?
—Sure, but you ______ return it tomorrow. [ ]
A. need
B. must
C. can
D. may
答案
B
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—Sally, may I borrow your notebook?
—Sure, but you ______ return it tomorrow. [ ]
A. need
B. must
C. can
D. may
B
