问题
选择题
---I’m afraid I ______ return the book to you before Friday.
--- Take your time.
A．must
B．may
C．needn’t
D．can’t
答案
答案：D
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---I’m afraid I ______ return the book to you before Friday.
--- Take your time.
A．must
B．may
C．needn’t
D．can’t
答案：D