Visitors ________not to touch the exhibits.
| A．will request | B．are requested | C．are requesting | D．request |
You will succeed ________as long as you don’t give up.
| A．in your turn | B．by turns |
| C．on time | D．in time |
---Mum, I have cleaned my room.
--- ________.
| A．Wonders will never cease. | B．I believe not. |
| C．Go ahead. | D．Thanks a lot. |
Why didn’t Jim come to school this morning? ---Because there was _______ with his legs.
| A．nothing wrong | B．wrong something |
| C．something wrong | D．anything wrong |
There is some doubt_______ he can win the first prize.
| A．that | B．whether | C．if | D．what |
It is _____ that the Chinese ping-pong team will win the prize.
| A．sure | B．necessary | C．regular | D．certain |