People who often sleep a lot but don’t do a lot of __ _ will not be very healthy.
| A．exercise | B．exercising |
| C．exersises | D．to exercise |
—Don’t leave your computer_____ if you don’t use it. Electricity is valuable.
— Sorry, I won’t.
A. on B. out C. off
The air_______ of Shenzhen in February ranked the 10th among 74major cities in China.
A. quarter B. quality C. quantity
— Do you know the Beijing actor Lu Han?
— Yes. He is a former _______ of the South Korean pop band EXO.
A. number B. amount C. member
The plane will ________ from Guangzhou Airport and land in New York.
| A．take up | B．take out |
| C．take away | D．take off |
. --- May I play computer games now, mum?
--- No, you _______. You haven’t finished your homework yet.
| A．don’t | B．needn’t | C．can’t | D．may not |