.His conclusion, ______ on careful research, was acceptable.A．to baseB．to be bas
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.His conclusion, ______ on careful research, was acceptable.| A．to base | B．to be based | C．basing | D．based |
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答案
| D |
解析
| 考查非谓语动词。句中be based on以……为基础，在句中作定语，修饰His conclusion，相当于定语从句which is based on…，故选D。 |
举一反三
.He suddenly saw what looked like a snake in the darkness. For an instant his heart seemed to stop ______.| A．to beat | B．beating | C．beaten | D．being beaten |
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.She will tell us why she feels so strongly that each of us has a role ______ in making the earth a better place to live.| A．to have played | B．to play | C．to be played | D．to be playing |
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.Not ______ beautiful, the building is ______ now.| A．looking, being built | B．looked, being built | | C．being looked, building | D．looking, built |
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The decision was made ______ soon after the meeting was over. Who was made_____ the decision soon after the meeting was over?| A．to know, known | B．known, to know | C．known, known | D．to know, to know |
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.Nancy isn’t here. It’s my fault, I forgot all about ______ her.| A．to telephone | B．telephoning | C．to telephone to | D．telephoning by |
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