问题
选择题
I'm afraid Mr.Harding ______ see you now.He's busy.
A．can't
B．mustn't
C．shouldn't
D．needn't
答案
答案：A
A [句意：恐怕Harding 先生现在不可能见你，他很忙。can't不可能；mustn't一定不要；shouldn't 不应该；needn't 不必。故选A。]
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