【题目】The manager __________ the workers how to improve the program since 9 am.

A. has told B. is telling

C. has been telling D. will have told

【题目】Walmart, which is one of the largest American supermarket chains, some of its stores open 24 hours on Mondays through Saturdays.

A.keeps B.keep C.have kept D.had kept

【题目】He said that doing part-time jobs did no good to students, but few ______ his view.

A. agreed B. permitted

C. shared D. nodded

【题目】We will ______ all the natural resources if we continue consuming them like that.

A. run out B. wipe out

C. drop out D. hold out

【题目】I have to see the doctor because I __________ a lot lately.

A. have been coughing B. had coughed

C. coughed D. cough

【题目】—I am afraid I can't return the book to you before Friday.

— ______ .

A. Take your time B. Be careful

C. Not at all D. Don't be afraid

【题目】 For many years, people __________ electric cars. However, making them has been more difficult than predicted.

A. had dreamed of B. have dreamed of

C. dreamed of D. dream of

【题目】

Don't use water to put out the fire if oil catches fire. As is known, oil ______ float on water.

A. shall B. must

C. may D. will

【题目】

He ______ have sent the e-mail at an earlier time， but there was something wrong with the network.

A. must B. should

C. could D. might

【题目】We should take care of the blind. It is immoral to them.

A.make room for B.make fun of

C.make sense of D.make use of