I _____ in the past, but now I have to get used to____ for my health.

A. often stayed up, going to bed early B. used to stay up, going to bed early

C. often stayed up, go to bed early D. used to stay up, go to bed early

The machine is new for me. I don’t know ______ without the instructions.

A. how to use it B. what to use it C. why to use it D. where to use it

—Do you know Nelson Rolihlahla Mandela?

—I ____ him. Who is he?

A. have ever heard B. have never heard of

C. do ever hear D. do already hear of

A number of the balls ____ in the box. ____ of them ____ yellow.

A. is; one fifths; are B. are; one fifths; is

C. is; one fifth; is D. are; one fifth; are

Chang'e-3 ____ a lander and a moon rover.

A. is made of B. is made up of C. is made from D. is made in

— Which would you like, tea or water,Jim?

— ____, I’m not thirsty.

A. None B. Both C. Either D. Neither

Everyone ____ supposed ____ a seat-belt (安全带)in the car to keep safe.

A. is; wearing B. is; to wear C. are; wearing D. are; to wear

The computer is used not only to play games but ____a tool for learning.

A. by B. as C. for D. to

—What did you get _____ your eighteenth birthday, Tony?

—An iphone5 ____ my aunt.

A. to; for B. from; from C. with; for D. on; from

Do you want to be healthy? _______. That can help you stay healthy.

A. Be happy. B. Being happy. C. To be happy. D. Being happily.