Dung is kind and helpful, but he is also a little careless _____________.
| A．at time | B．at a time | C．at times | D．once a time |
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 |
The old man has two daughters, but ________ of them lives with him.
| A．none | B．both | C．neither | D．All |