. The Roman Empire _____ for several centuries.
A．existsB．existedC．was existedD．is existing
B
考查時(shí)態(tài)。句意：羅馬帝國存在了幾個(gè)世紀(jì)。結(jié)合句意可知本句描述的是過去發(fā)生的動(dòng)作，故用過去時(shí)態(tài)，選B。
練習(xí)冊(cè)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

—Why does the lake smell terrible?
—Because large quantities of water           .
A．have pollutedB．is being pollutedC．has been pollutedD．have been polluted

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Father finally came back home, which I ___ forward it.
A．had been lookingB．have been looking
C．looked D．have looked

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

It is the first time that Chinese astronaut Wang Yue________as one of the volunteers for the Mars-500 test project .   
A．has been selectedB．had been selectedC．has selectedD．selected

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


---Is there anything wrong, Bob? You look sad．
---Oh, nothing much．In fact, I        of my friends back home．
A．have just thoughtB．was just thinking
C．would just thinkD．will just be thinking

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


You’re not _______to smoke here, because it’s a non-smoking area.
A．demandedB．hopedC．supposedD．suggested

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


The professor kept telling us that the future _____ to the well-educated and I kept wondering
where I _____ of it.
A．would belong; heard B．belonged; had heard
C．was belonged; heardD．was belonging; had heard

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


31. This painting     to a museum in New York in 1977.
A．sellsB．sold C．was sold D．is sold

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


Whenever you have questions in class, first you should _____ your hand , then _____and ask with the permission of the teacher.
A．rise; raiseB．raise; riseC．raise; raisedD．rise; rose

查看答案和解析>>

同步練習(xí)冊(cè)答案