Years ago we didn’t know this , but recent science______that people who don’t sl
题型：不详难度：来源：
Years ago we didn’t know this , but recent science______that people who don’t sleep well soon get ill.| A．showed | B．has shown | C．will show | D．is showing |
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答案
| D |
解析
| 考查时态。“几年前，我不知道这件事，但最近的科学正在表明，睡眠不好的人容易得病。”用进行时 |
举一反三
– I have got a headache.
--No wonder. You ___in front of that computer too long. | A．work | B．are working | C．have been working | D．worked |
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Leaders of the BRIC countries-----Brazil, Russia, India and China----_______their second summit on Friday. President Hu Jintao then returned home to help direct relief work ______the deadly earthquake in Qinhai.| A．left, to follow | B．concluded, following | | C．had left, following | D．had concluded, followed |
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Every possible means _______to prevent the air pollution, but the sky is still not clear. | A．are being used | B．have been used | C．has been used | D．had been used |
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I ______ on a sofa because my grandparents have come for the weekend.| A．slept | B．was sleeping | C．have slept | D．am sleeping |
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The child said that he had _____ the pen on the desk, but I thought he ____ to me.| A．laid; lied | B．lain; lied | C．lied; lay | D．lain; lay |
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