You ________ to leave until you _______ your work. A．won’t be allowed; have fini
题型：不详难度：来源：
You ________ to leave until you _______ your work. | A．won’t be allowed; have finished | B．won’t allow; finish | | C．won’t be allowed; will finish | D．won’t allow; will finish |
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答案
| A |
解析
| 该句考查的是not ... until句型，由until，when，before等引导的时间状语从句不与将来时态连用，应该用一般现在时或现在完成时代替，故选A。 |
举一反三
When the old man _______ to walk back to his house, the sun ________ itself behind the mountain.| A．started; had already hidden | B．had started; had already hidden | | C．had started; was hiding | D．was starting; hid |
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I __________ there little more than a week when I set to work with the scientist. | A．would be | B．have been | | C．had been | D．will be |
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When I was a little child, Father told me the earth ___ round then sun.| A．turn | B．turned | C．is turned | D．turns |
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Our teacher taught us that water ___ at zero degree centigtade.| A．freezes | B．freeze | C．freezed | D．is freezed |
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He ___ Beijing for a long time.| A．has been away | B．has left | C．has been away from | D．left |
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