—Sorry, I didn’t hear the door bell ring.—Your bell         . Perhaps it needs r

—Sorry, I didn’t hear the door bell ring.—Your bell         . Perhaps it needs r

题型:不详难度:来源:
—Sorry, I didn’t hear the door bell ring.
—Your bell         . Perhaps it needs repairing.
A.never workedB.is never working
C.never worksD.had never worked

答案
C
解析
频度副词一般搭配一般现在时态使用,句子主语the  bell为单数第三人称,谓语动词后面加s,故选C。
举一反三
How to control housing price is said to       a great challenge facing the government over the past few years.
A.becomeB.becomingC.have becomeD.be becoming

题型:不详难度:| 查看答案
—— May I see you at 4 o’clock this afternoon?
—— I’m afraid not, I      a charity meeting then.                                                                                                                                           
A.will attendB.have attendedC.will be attendingD.was attending

题型:不详难度:| 查看答案
By the time Fred gets back home, his girlfriend       for London to study.
A.will have leftB.leavesC.has leftD.will leave

题型:不详难度:| 查看答案
My parents have promised to come to see me before I ____for Africa.
A.have leftB.leaveC.leftD.will leave

题型:不详难度:| 查看答案
By the time these books were published,  he _____ addicted to them.
A.had becomeB.becomesC.has becomeD.became

题型:不详难度:| 查看答案
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