Do come here tomorrow,         we will enjoy the live performance by the “Heart-to-Heart” Art Troupe.

A. or                   B. while              C. and                  D. however

We have to write a description of the street _____ we live and give it to the teacher tomorrow.

A. which             B. that     C. where                   D. how

 We  ______ to clean the blackboard every day.

A. take turn         B. in turn

C. by turns            D. take turns

-----Can I speak to Mr．Wang?

-----Sorry, he' s out．Can I _____ a message?

A．leave　　　　　 　 B．take　　　　　 　 C．ask for　　　　　 　　 D．want

The new research team was led by the ________engineer.

A. main         B. major            C. chief           D. primary

—The government should try to balance economic growth and pollution from industry.

—____. It’s time to do it.

A. All right　　 B. Exactly　　　　 C. Go ahead　　　　　 D. That’s OK

The quick rise in the price of food will make people______,that is，offect people's living    standard．

A．disturbed      B．fascinated    C．distinguished    D．interrupted

 “A good child is one who _____ his mistakes,” most parents would say to their children.

A. is admitting           B. will admit     C. admitted          admits

I don't think he could have lost so much money last night,__?

A．did he      B．could he   C．do I   D．hasn't he

 “Mum, why do you always make me eat an egg every day?” “________ enough protein and nutrition as you are growing up.”

A. Get     B. Getting  C. To get    D. to be getting