精英家教网 > 高中英语 > 题目详情
New medicines and instruments ______ every day to extend life.
A.developB.are being developed
C.are developingD.have developed
B
从语境上看,develop 不仅要用被动语态,而且要用进行时态。
练习册系列答案
相关习题

科目:高中英语 来源:不详 题型:单选题


.I know a little bit about Italy as my wife and I______ there several years ago.
A.are goingB.had beenC.wentD.have been

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

People around the world are ______ the Japanese government to face the history with a correct attitude now.
A.answering for B.pushing forC.accounting for D.caring for

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

—Believe it or not! I should get my lost wallet back after I left it in the taxi this morning.
—Couldn’t agree more! You know, someone _______ it. There are still good persons in Chongqing.
A.can have takenB.might have taken
C.should have takenD.must have taken

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

______, your composition is full of mistakes.
A.Writing carelesslyB.Written carelessly
C.Having written carelesslyD.Being written carelessly

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

let’s go out now. It _____ any more.
A.didn’t rainB.doesn’t rainC.won’t rainD.isn’t raining

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题


6.I have to go to work by taxi because my car ____at the garage.
A.will be repairedB.is repaired
C.is being repairedD.has been repaired

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

When I got to the cinema, the film _____ for five minutes.
A.had begunB.has been on
C.has begunD.had been on

查看答案和解析>>

科目:高中英语 来源:不详 题型:单选题

Tom ________ in the library every night over the last three months.(2011·北京)
A.worksB.worked
C.has been workingD.had been working

查看答案和解析>>

同步练习册答案