Is this the first time that you _____ here?A．visitB．are visitingC．had visitedD．h
题型：不详难度：来源：
Is this the first time that you _____ here?| A．visit | B．are visiting | C．had visited | D．have visited |
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答案
| D |
解析
| 考察时态。句意：这是你第一次到这儿吗？可知从句描述的是现在已完成的动作，故用现在完成时态，选D。 |
举一反三
Travelers that they should bring their ID cards with them.| A．have reminded | B．are reminded | | C．were reminding | D．had been reminded |
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The water will be polluted unless some measures _____.| A．will be taken | B．are being taken | C．are taken | D．were taken |
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With the gas _____, they had to quit the car and walked.| A．has run out | B．running out | C．ran out | D．be run out |
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Many air flights _________because of the eruption of the volcano, in _______case, many passengers had no choice but to take a train. | A．had been cancelled; which | B．have been cancelled; what | | C．had been canceling; that | D．have been canceling; where |
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The violin will have to be tuned before it _____.| A．plays | B．should play | C．is played | D．is being played |
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