--Alice, why didn"t you come yesterday? --I _________, but I had an unexpected
题型：不详难度：来源：
--Alice, why didn"t you come yesterday?
--I _________, but I had an unexpected visitor.| A．had | B．would | C．was going to | D．did |
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答案
| C |
解析
| 当不定式在某些结构后作复合谓语时，不定式符号 to后的内容可以省略。常见的结构有：be able to，be going to，have to，ought to，used to等。 |
举一反三
—Did Linda see the traffic accident?
—No, no sooner __________ than it happened. | A．had she gone | B．she had gone | | C．has she gone | D．she has gone |
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__________ homework did we have to do that we had no time to take a rest. | A．So much | B．Too much | | C．Too little | D．So little |
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So difficult __________ it to work out the problem that I decided to ask Tom for advice. | A．I did find | B．did I find | | C．I have found | D．have I found |
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—It’s burning hot today, isn’t it?
—Yes. __________ yesterday.| A．So was it | B．So it was | | C．So it is | D．So is it |
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Only then __________ how much damage had been caused. | A．she realized | B．she had realized | | C．had she realized | D．did she realize |
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