______ it ______ for your help, I couldn’t have made any progress.A．Had; not bee
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______ it ______ for your help, I couldn’t have made any progress.| A．Had; not been | B．Should; not been | | C．Did; not been | D．Not; been |
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答案
| A |
解析
| 考查虚拟语气。根据语境可知考查与过去事实相反的虚拟语气，故从句用had + v-ed，had it not been =" if" it had not been，故选A。 |
举一反三
---You ought to have warned him of the danger!
--- ____! But he wouldn’t listen!| A．So did I | B．So ought you | C．So I did | D．So I have |
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Only after__________ his work __________ to see his grandfather.| A．finishing; did he go | B．he finishes; did he go | | C．he finished; he went | D．having finished; he went |
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Not a single word_______when _______about his late mother.| A．he said, asked | B．did he say, asked | | C．he said, asking | D．did he say, asking |
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Only when we begin our college life______the importance of English.| A．we realize | B．we will realize | C．have we realized | D．do we realize |
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So serious that all the persons on board were killed.| A．was the accident | B．did the accident | C．the accident was | D．the accident did |
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