1 . The plane ________ off at 10:00. That is, it ________ in ten minutes.

A．takes; is leaving

B．taking; is leaving

C．is taking; leaves

D．is taking; is leaving

2 . The students of our class ______ (visit) the museum now.

3 . Today the number of people learning English in China _______(be) increasing rapidly.

4 . —Have you moved into the new house?
—Not yet. It ________.

A．has been built	B．was built
C．is being built	D．had been built

5 . 用所给词的适当形式填空（时态和语态）
1. She ________ (leave)home for school with her friends at 7 every morning.
2. The scientist told the students the object on the moon ________(be) lighter than it on the earth.
3. He hurried home, never once looking back to see if he ________(follow).
4. So far, large quantities of materials ________(send) to the company by express delivery, which have a great effect on improving the quality of its products.
5. It is the first time that I ________(visit) the city. And I am impressed by its beauty.
6. Scientists ________(observe) a drop in temperature in the area up to now.
7. —Did you tell Julia about the result of the final exam?
—Oh, no, I forgot. I ________(call) her now.
8. People ________(have) better access to health care than they used to, and they’re living longer as a result.
9. If he ________(accept) the job, he will have more chances to prove his ability.
10. The summer holiday ________(approach), and I plan to go to Beijing.

6 . The father as well as his kids _______ (discuss)where to spend the weekend now.

7 . We __________ (run) out of gas, so we’d better stop at the next gas station to fill up.

8 . Our supplies _____, so we must get enough of them before none is left.

A．have run out	B．have been run out
C．are running out of	D．are being used up

9 . When the children are ________ (cycle) to school on dark mornings, car drivers can easily see them.（所给词的适当形式填空）