The operation room in every hospital has to ______ bacteria of any kind.A．keep f
题型：不详难度：来源：
The operation room in every hospital has to ______ bacteria of any kind.| A．keep free from | B．make it free from | C．be made free from | D．be kept free from |
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答案
| D |
解析
试题分析：考查固定词组和语态。固定词组free from免受…的伤害；句意：每家医院的手术室要被设成不受任何细菌的影响。根据句意说明使用被动语态。
点评：固定词组free from免受…的伤害。句子的语态要从上下文的句意出发，同时注意不同的时态的被动语态的形式上的区别。 |
举一反三
With food, water and electricity ______, the villagers are suffering a lot. | A．cut down | B．cut up | C．cut off | D．cut in |
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He has promised to _________ the matter and will give the workers a satisfactory answer.| A．look into | B．look after | | C．look at | D．look for |
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He is used to ___________ to his office in spite of bad weather.| A．to walk | B．walking | C．walked | D．has walked |
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Our English teacher is ______ our teacher; she is also our best friend. | A．rather than | B．other than | C．more than | D．less than |
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Hearing what the man has done, they insist that such behavior should not be _____ whatever he says.| A．touched | B．trained | C．tolerated | D．treated |
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