23．You shouldn' t come in here leaving the customers_________at the counter
| A．wait | B．to wait | C．Waiting | D．waited |
These plants are watered___________.
| A．each other day | B．every other day |
| C．each of two days | D．every of two days |
When I was at school, I _____ up very late, reading storybooks.
| A．used to stay | B．was used to stay |
| C．used to staying | D．am used to staying |
Tom admitted ______ in the examination and he was not admitted _____ the school at last.
| A．to cheat; to | B．cheating; to |
| C．to cheat; as | D．cheating; as |
Roses need special care _____ they can live through winter.
| A．because | B．so that |
| C．even if | D．as |
We all think highly of the important part Wang Zhizhi ___________ in this match.
| A．played | B．did |
| C．had | D．took |