—Have you seen Rose recently?
— No．It’s five years _____ I met her．
| A．since | B．after |
| C．when | D．before |
_________ sweet, the flowers in the botanic garden attract the visitor.
| A．Smelt | B．To smell | C．To be smelt | D．Smelling |
Sorry, Madam. You’d better come tomorrow, because it’s ______ the visiting hours now.
| A．during | B．at | C．beyond | D．before |
---Have you heard of Wang Meng?
---Yeah, she ______ have done better. She won China’s first gold medal at Turin.
| A．should | B．might | C．needn’t | D．couldn’t |
He was busy writing a story, only ____ once in a while to smoke a cigarette.
A. to stop B stopping C to have stopped D having stopped
The computer system suddenly ____ while he was searching for information on the Internet.
| A．broke down | B．broke out | C．broke up | D．broke in |