----I have got a headache. ---- No wonder. You ________ in front of that compute
题型：不详难度：来源：
----I have got a headache.
---- No wonder. You ________ in front of that computer too long.| A．work | B．are working | C．worked | D．have been working |
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答案
| D |
解析
| 考察时态。根据第一句我头疼，可知是过去发生的事情对现在的影响，。在根据too long可知应该使用完成进行时。句意：—我头疼。—难怪。你在电脑前面工作的时间太长了。 |
举一反三
My parents have promised to come to see me before I _________ for Africa.| A．have left | B．leave | C．left | D．will leave |
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What he has achieved still _________ all the people around．| A．astonishes | B．astonished | C．astonishing | D．astonishment |
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–Why, David, you look so tired!
–Well, I ______ a report for the whole day and I must finish it tomorrow.| A．was writing | B．will be writing | | C．have written | D．have been writing |
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Look! The houses _________.| A．is being built | B．are building | C．being built | D．are being built |
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—We want to sit at the table near the window.
—I’m sorry，but it________ already.| A．has taken | B．took | C．was taken | D．has been taken |
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