问题
选择题
You ______go and ask Lily . She ______know the answer.
A．must, can
B．must, may
C．need, can
D．can, may
答案
答案：D
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You ______go and ask Lily . She ______know the answer.
A．must, can
B．must, may
C．need, can
D．can, may
答案：D