1. He set up in business__1__ his own and was very successful.
　　A. inB. of C. onD. by
　　
2. John’s score on the test is the highest in the class; he__2__ last night.
　　A. must studyB. should have studied
　　C. must have studiedD. is sure to study
　　
3. Frank almost never received any education__3__ ?
　　A. would heB. did he
　　C. didn’t he D. wouldn’t he
　　
4. Even if his letter__4__ tomorrow, it__4__ too late to do anything.
　　A. will arrive...isB. should arrive...were
　　C. arrives...will beD. arrives...would be
　　
5. We can hear__5__ from the back of the room.
　　A. just as goodB. just as easy
　　C. just as wellD. easily as well

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