The Nile River ____ flood large areas but now the water ____ produce electricity.
A．used to; is used toB．used to; used to
C．was used to; is used toD．was used to; used to
A

試題分析：考查固定句型。句義：尼羅河過去常常淹沒大片地區(qū)但是現(xiàn)在被用來發(fā)電。固定句型used to do 過去常常（而現(xiàn)在不。。。） be used to do 被用來。。。，根據(jù)句意所以A正確。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：單選題

It was the third time that she ______ to this mountain village to see the children.
A．had comeB．has comeC．cameD．would come

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

He is only too ready to help others, seldom, _____, refusing them when they turn to him.
A．if not B． if everC．if anyD．if so

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

- - _____ no ad in the World Cup.
- - Great move! I cannot tolerate those annoying ads appearing every few minutes．
A．There is said to haveB．It is said to have
C．There is said to beD．It is said to be

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

_______ his return from America, he got down to his research.
A．WhileB．InC．AsD．On

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

“___________,” the soldiers screamed loudly, who held a gun in his hands, “or I will shoot again.”
A．Stopped there B．Stopping there
C．To stop thereD．Stop there

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—It’s years ____you broke up then.
—Yes. I have regretted the decision. It was long ____I realized I had mistaken him.
A．until; afterB．when; before
C．since; beforeD．when; until

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

-- In the countryside you can enjoy fresh air, blue sky and quiet surroundings.
--- _______ more and more retired people are escaping from the crowded city.
A．It is no wonderB．It is no doubt
C．There is no needD．There is no possibility

查看答案和解析>>

同步練習(xí)冊答案