The twelve animal- head statues are _______ ,for they are our national art treasures.

A. valueless　　 B. invaluable　 C. worthless D. useful　　

You have to ____ a choice. Are you going to leave the job or stay?

　 A. decide　 B. get　 C. do　 D. make

Can you make sure ___________?
A. that he will come here today 　　　　　 B. when he will come here today
C. will he come here today  　　　　　　　 D. whether will he come here today

The meeting was concerned ______ reforms and everyone present was concerned　　　　　 their own interests.

A. with; for 　　　 B. for; which 　　 C. for; about　 　　 D. about; with

Only _____ our courage beats our fear ________________.

A. when; can we succeed　　　 　　　 B. if; we can succeed

C. because; will we succeed　　 　　 D. while; we’ll be able to succeed

Please tell me _____ you want your coffee, black or white?

　 A. when 　 B. what

　 C. how 　 D. which

The teacher asked a difficult question, but finally Ted ____ a good answer.

A. came up to　　 B. came over to　 　C. came up with 　 D. came along with

Many people firmly believed ______ a healthy lifestyle can improve the quality of life.

A. that　　　　　　　 B. if　　 C. how 　 D. why

They　　 on the program for almost one week before I joined them,and now we　　 it as no good results have come out so far.

A、had been working;are still working　　　　 B、had worked;were still working

C、have been working;have worked 　　　　　D、have worked;are still working

You must a_______ to your sister for being so rude.