1 . Ladies and gentlemen, please fasten your seat belts. The plane ________.

A．takes off

B．took off

C．is taking off

D．has taken off

2 . I “ll go to the library as soon as I finish what I ______.

A．was	B．am doing
C．have done	D．had been doing

3 . —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

4 . Everyone wants to reach the top of the mountain, but all the happiness happens while you           it.

A．climb	B．climbed
C．are climbing	D．have climbed

5 . I can guess you were in a hurry. You ______ your sweater inside out.

A．had worn	B．wore
C．were wearing	D．are wearing

6 . Hurry up, kids! The school bus ________ for us!

A．waits	B．was waiting
C．waited	D．is waiting

7 . Hurry up! The train _____________. You know it _______ at 8:30.

A．leaves; leaves

B．is leaving; leaves

C．leaves; is leaving

D．is leaving; is leaving

8 . Food supplies in the flood-stricken area _______. We must act immediately before there’s none left.

A．have run out

B．have been run out

C．are running out

D．are being run out

9 . Because the shop ______, all the T-shirts are sold at half prices.

A．has closed down	B．closed down
C．is closing down	D．had closed down

10 . My headache _____ me. I thought it was going away, but it’s getting worse and worse．

A．kills

B．is killing

C．was killing

D．killed