Jiangsu Development Summit was open _____ May 20th in Nanjing.

A. on B. in C. at D. by

—The life we were used to greatly since 2009.

—That's true. It is changing for the better all the time.

A.change B.changing C.has changed D.have changed

—Has Jim known the good news?

—Not yet. I will tell him about it ________ he comes back.

A.while B.until C.as soon as D.since

_______ awful the weather is! I’m afraid we have to cancel our sports meeting.

A.What an B.What C.How an D.How

You needn’t _______ missing the film. To be honest, it’s not worth watching at all.

A. enjoy B. regret C. avoid D. Suggest

—James, I am sorry I used your computer while you were away this morning.

—________.

A.That’s all right B.It’s a pleasure

C.You are welcome D.That’s right

—It’s said that we can lose weight easily by taking such medicine.

— ________. Remember that any medicine does some harm to our health.

A.That’s not the case B.Sounds good

C.I hope so D.Believe it or not

－What do you think of the company’s new ideas?

－I don’t agree with ___________. But I have to say some of them are of value.

A.all B.anything C.any D.none

He seldom stays up late at night, ______ necessary, to keep himself full of energy the next day.

A.if B.unless C.until D.while

—Will you fix up the broken robot according to the , Tommy?

—No problem.

A.invention B.information C.instruction D.introduction