- For many years, people _____ electriccars. However, making them has been more difficultthanpredicted.[ ]A. had dreame...
- All that can be eaten ____ eaten up.[ ]A. are beingB. has beenC. had beenD. have been
- 用see完成句子。1. This stadium____many important football matches.这个体育场见证了许多重要的足球比赛.2.Dusk ____ her ...
- This is the second time I____ the Himalayas as acollege student.[ ]A. climbB. had climbedC. climbedD. have climbed
- This is the second time I ____ the Himalayas as a college student.[ ]A. climbB. had climbedC. climbedD. have climbed
- The exercises are extremely difficult, but half of the class_____ them ahead of time. [ ]A. has already finishedB. wi...
- — Has your son come back from abroad for the winter vacation?— Yes. But he stayed at home for only a week. Now he bac...
- It is hard to imagine what progress they _____ in the past few months.[ ]A. madeB. have madeC. had madeD. make
- — Would you care for a cup of coffee?— I ________ one. Thank you just the same.[ ]A. hadB. have hadC. would haveD. wi...
- In the past two years, the number of campus bookstores offering rentals _____ from a few dozen to1,500.[ ]A. jumpedB....
- Space exploration began in the 1960s, and since then about five hundred people _______ into space.[ ]A. are traveling...
- She knows so much about England. She_____there before.[ ]A. must beB. must liveC. must have beenD. must have livedin
- Mum, I arrived at the train station twenty minutes ago, but Betty up yet.[ ]A. hadn't turnedB. won't turnC. hasn't tu...
- 短文改错。假定英语课上老师要求同学之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,要求你在错误的...
- —I haven't heard from Henry for a long time.—What do you suppose _____ to him?[ ]A. will happenB. has happenedC. was ...