Those who would like to help others always have more chances to help____．

A. them B.themselves C.us D.ourselves

All the teachers love Mary. She is very in answering teachers' questions in class.

A. polite B.direct C.active D.lively

Nowadays Wechat is____used by people for communicating, sharing, chatting, and so on.

A. lastly B.exactly C.widely D.nearly

Following the traffic rules can help us____ accidents.

A. influence B.repeat C.produce D.avoid

--Is that Anna's car?

--It____be hers. She has just gone to the theater for the new opera.

A. can't B.mustn't C.may D.could

--Has Tommy finished his project yet?

--Maybe not. He ___on it at lunch time. Let's go to have a look now.

A. has worked B.is working

C.was working D.had worked

I____some information on the Internet for my trip in the coming winter holiday.

A. gave up B.looked up C.showed up D.ended up

-Why are there so many people in the restaurant?

-It starts business today and the drinks____ for free.

A. were offered B.have offered

C.are offered D.will offer

-Why are you so late getting home?

-Our teacher didn’t let us go____ we had finished our homework.

A. because B.when C.if D.until

-What did you do in today's history class?

-We talked about the characters____ achieved fame in American history.

A. who B.which C.／ D.what