精英家教网 > 初中英语 > 题目详情
﹣Why are the windows so dirty?
﹣Because we __________ them for a long time.
A. have cleaned         B. haven’t cleaned         C. didn’t clean
B

试题分析: 句意:为什么窗户那么脏?因为我们很长时间没清洁了。for a long time很长时间,for加时间表一段时间,用于现在完成时,窗户脏的原因是没有清洁,故选B.
练习册系列答案
相关习题

科目:初中英语 来源:不详 题型:单选题

Trees and flowers ________every year to make our country more beautiful.
A.is plantedB.was plantedC.are plantedD.were planted

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

When I got home last night, my parents ____ for me at the table.
A.waitB.waitedC.were waitingD.have waited

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

They_________ all their money, so they have to walk home now.
A. spend     B. will spend      C. have spent       

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

----When __________ they leave here ? ----Next Monday.
A.doB.willC.doesD.are.

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

—Jim, could you tell me if you _____________ our party tomorrow?
—I think I will if I _____________ free.
A.will take part in, will be B.take part in, am
C.will take part in, amD.would take part in, will be

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

The students told us _____________last summer vacation.
A.where did they campB.where will they camp
C.where they campedD.where they will camp

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

---Have you seen Dr. Adams recently?
---No. He __________ Hong Kong for an important meeting. He’ll come back tomorrow.
A.has gone inB.has been inC.has gone toD.has been to

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

     you see the film Journey to the West yesterday?
—Yes. But the film      for 5 minutes by the time I got there.
A.Do; had begunB.Do; had been on
C.Did; had begunD.Did; had been on

查看答案和解析>>

同步练习册答案