—–I think the man over there must be Tom.—–It _____ be him. He has ______ to America.

题型：单选题题类：模拟题难易度：普通

—–I think the man over there must be Tom.

—–It _____ be him. He has ______ to America.

A、can't；gone B、can't；been C、may not；been D、mustn't；gone

举一反三

— Yes. People ________ talk loudly in public.

—No, you ________. You may go home, but you ________go to the net bar.

—No, we . We have to wait until the light turns green.

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