一道英语完型填空题。
Insurancecompanies_______peopleincertainareastoinstallthealarmsbeforetheywillgivethem...
Insurance companies_______people in certain areas to install the alarms before they will give them insurance for the past year.
A. have been asking
B. have been asked
C. asked
选什么？为什么？把语法点说出来。 展开
A. have been asking
B. have been asked
C. asked
选什么？为什么？把语法点说出来。 展开
3个回答
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A
首先 for the past year那要用现在完成时，C排除，而是保险公司要求人们……，所以是主动选A
首先 for the past year那要用现在完成时，C排除，而是保险公司要求人们……，所以是主动选A
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