6. Many Beijing c______ cycle to work.

5. Desertification is a long p______ that takes many years.

4. There is a lot of d______ on the floor. We need to sweep it away.

3. I was in a very big sandstorm some years ago. Luckily. Everyone s______.

2. It’s f______ to be outside in a sandstorm.

1. Weather experts have f______ another big sandstorm in a week’s time.

3. The man need to complete the work on the house by the end of the week.

The work on the house needs to ___________________________________

2. Experts hope that they will learn more about the movement of thunderstorms.

Experts hope ________________________________________________

1. I’m traveling during a sandstorm.

It’s dangerous ______________________________________________

2. Choose the best answers.

(1) As the busiest woman in Norton, she made ___ her duty to look after all the other people’s affairs in that town.

　 A. this　　　 　　　　B. that　　　 　　　C. one　　 　　　　D. it

(2)　 A storm is quite likely to come. Let’s hurry so as not to ___.

　 A. catch　　 　　　　B. be caught　　 　　C. be caught in　　 D. catch in

(3) There is no time ____. We should make every effort to study well.

　 A. losing　　　　 　　B. to lose　　　 　　C. lost　　 　　　　D. being lost

(4) Do let your mother know all the truth. She appears ___ everything.

　 A. to tell　　　 　　　B. to be told　　 　C. to be telling　 D. to have been told

(5) --- The light in the office is still on.

　 --- Oh, I forgot ______.

A. to be turning it off　　　 　　　　　　　B. turn it off　　

C. to turn it off　　　　　 　　　　　　　D. to have turned it off

(6). Most houses seems ______ destroyed by the storm when we arrived there.

A.　　 to be　 　　　　　B. to　 　　　　　C. to have been　　 D. being

(7) We were told not ______ the house at night.

A. to leave　 　　　　B. leaving　 　　　　C. to be leaving　 　　D. left