The number of the students in our school _____ large.

A. are 　 B. is　　 C. am 　 D. be

“你的意思是不是说我没说实话?”

“Are you ___________ that I’m not_________________?”

—I'm afraid I can't go with you tomorrow.

—But you said you would go—you can't __________ now.

A. back out　　　　　 B. go down　　　　 C. get across　　　　　 D. put on

The number of employees ________ from 40 to 25 over the past year.

A. has been reduced　　 B. have been reduced　

C. has reduced　　 D. have reduced

Do you know when the system________.

A．was come into being B．came into being

C．abolished D．abandoned

Many developing countries want to find ways ____________________（充分利用科学）. (use)

The pen I 　　 I 　　 is on my desk, right under my nose.

A. think; lost　　　 B. thought; had lost　　　　　 C. think; had lost　 　D. thought; have lost

I’ll never forget the days 　　 I learn hard in my senior high school, 　　 changed my whole life.

A．that; which　 　　　　　　 B．when, which C．which, when　 　 D．that; that

--Shall I give you a ride to the Capital Airport?

　 --Thank you．________．

　 A．If you like　　　　 　　 B．It couldn’t be better

　 C．Of course, you can　　　　　 D．It’s up to you

David will probably ________, but Martha must leave early.

A. stay late    B. be late to stay   C. being late   D. staying late