According to the engineer, there remain some tests _____ before the machine is p
题型：不详难度：来源：
According to the engineer, there remain some tests _____ before the machine is put into operation.| A．carrying out | B．carried out | C．being carried out | D．to be carried out |
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答案
| D |
解析
试题分析：表示将来的情况，所以用不定式，且carry out与其逻辑主语之间是被动关系，所以用不定式的被动式。
点评：解题思路，① 解析句子结构，确定设空在句子中充当的功能（如状语、定语或宾补）；②找准相关动词的逻辑主语，确定该动词与逻辑主语是什么关系（主动还是被动）；③ 搜索句子中相关的时间信息，确定非谓语动词的恰当形式；④ 将该选项置入空中，看是否能够做到字从意顺，或是否能传达有效信息、完成交际任务。 |
举一反三
The singers _____ from the whole country are expected to bring us a wonderful performance this weekend.| A．selecting | B．selected | C．having been selected | D．to select |
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He got up late and hurried to his office, ____ the breakfast untouched.| A．left | B．to leave | C．having left | D．leaving |
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Nobody but doctors, nurses or those ______ by Dr. Hu ______ to enter the patient"s room.| A．invited; are allowed | B．are invited; are allowed | | C．are invited; is allowed | D．invited; is allowed |
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Now that there are still some problems remaining ______, we have to work extra hours tonight| A．solved | B．solving | C．to be solved | D．to solve |
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He is going to hospital _____________a medical examination next week．| A．togive | B．tobegiven | C．tohavegiven | D．tohavebeengiven |
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