题目内容

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
相关题目

.I know a little bit about Italy as my wife and I______ there several years ago.
A．are goingB．had beenC．wentD．have been
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
—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
______, your composition is full of mistakes.
A．Writing carelesslyB．Written carelessly
C．Having written carelesslyD．Being written carelessly
let’s go out now. It _____ any more.
A．didn’t rainB．doesn’t rainC．won’t rainD．isn’t raining

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
When I got to the cinema, the film _____ for five minutes.
A．had begunB．has been on
C．has begunD．had been on
Tom ________ in the library every night over the last three months.(2011·北京)
A．worksB．worked
C．has been workingD．had been working

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网