--- Is Peter there?

   --- _____________, please. I’ll see if I can find him for you.

   A. Hold up       B. Hold on     C. Hold out    D. Hold off

—Can I smoke here?

—Sorry.We don’t allow_______here.

A.people smoking                                            B.people smoke

C.to smoke                                                      D.smoking

______ environmental damage is done, it takes many years for the ecosystem to recover.

A. Even if          B. If only           C. While            D. Once

The place _______ the bridge is supposed to be built should be ________ the cross-river traffic is the heaviest.

A. which; where                         B. at which; which

C. at which; where                      D. which; in which

Sales of CDs have greatly increased since the early 1990s, when people_____to enjoy the advantages of this new technology.

     A. begin               B. began                C. have begun          D. had begun

I still remember my middle school life in Tianjin yet. I was then           1. _______

in a school for students from Tibet. As we were all left home       2. _______

at early age, we met lots of problems in our daily life. We                    3. _______

had to do the washing, cleaning and shopping by us. However,            4. _______

we seldom felt lonely or helplessly. We enjoyed our happy life.                    5. _______

At weekends, we would play basketball, swimming in the pool              6. _______

or go for a picnic. We were living in a big family. We treat            7. _______

each other as brothers and sisters. If any one of us had any           8. _______

difficulty in our life and study, the other would help him out.              9. _______

It has been five years when we graduated, but those memories             10. _______

are as sweet as ever before.

It's nearly seven o'clock . Jack _____ be here at any moment .

        A. must          B. need               C. should            D. can

I posted the letter some time _____ the week .

      A. in                B. during       C. throughout  D. within

Attention! _________ in the form right now, making sure that every detail supplied is accurate.

A. Filling                  B. Fill                 C. To fill              D. Being filled

Thomas Alva Edison didn’t “invent” the light bulb (灯泡), but rather he ______ a 50 –year –old idea, which is not well –known.

A. improved upon      B. take down       C. put up        D. break away