How beautiful Catherine sings! I have never heard a ____ voice.
A. good B. better C. best
— May I watch TV now, mum?
— No, you . You must clean your room first.
| A．may not | B．needn’t | C．can’t | D．mustn’t |
Mary used to in the countryside, but now she is used to in the city.
| A．live ; live | B．live ; living |
| C．living ; live | D．living ; living |
WeChat (微信) is very popular. the young the old are getting interested in it.
| A．Neither…nor | B．Either…or |
| C．Not only…but also | D．Between…and |
You are supposed to be more careful to make fewer while you are writing.
| A．trouble | B．matter | C．mistakes | D．problems |
— Excuse me, are there any book stores around here?
— , but there are some on Center Street.
| A．Yes, there are | B．No, there aren’t |
| C．Yes, there is | D．No, there isn’t |