The old lady did not know ___________when the house caught fire.A．how to doB． wh
题型：不详难度：来源：
The old lady did not know ___________when the house caught fire.| A．how to do | B． what to do | | C． how to do it | D．what to do it. |
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答案
| B |
解析
试题分析：句意：当房子着火的时候，那位女士不知道做什么。因为do是及物动词，所以需要宾语，how不能作宾语；故排除A；如果用疑问词what，它可以作do的宾语，就没有必要用it，故排除D；故选。 |
举一反三
Which of the following words comes first in the dictionary?| A．trick | B．trousers | | C． treasure | D．treat |
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| It is a good habit (习惯) to read books a pen in her hand. |
— What about a drink of tea?
—Hurry up. There is time for a drink.| A．little | B．few | | C．a few | D．a little |
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We were all __________when we heard the news.| A．surprising | B．amazing | | C．surprised | D．interesting |
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Hearing the news, I was _________ excited _______ say a word| A．very; too | B．enough; too | | C．so; that | D．too; to |
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