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1.He ought to have handed in the paper yesterday.That's what

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1.He ought to have handed in the paper yesterday.That's what he ____
A should do B should be doing Cshould have done Dshould
2.The professor paused as if _____his students to ask questions on the point he had just made.
A expecting B to expect C expected D to have expected
c,should have dine早就应该做好的.
a,expecting,as if he was省略掉了.