_____ to make a speech, he said he would be glad to.
| A．When asked | B．When asking |
| C．When he was asking | D．When to ask |
Isn't it time you got down to ________ the papers?
| A．mark | B．be marked |
| C．being marked | D．marking |
There is a new problem involved in the popularity of private cars ________ road conditions need ________.
| A．that；to be improved | B．which; to be improved |
| C．where；improving | D．when；improving |
Susan wanted to be independent of her parents.She tried ________ alone, but she didn't like it and moved back home.
| A．living | B．to live |
| C．to be living | D．having lived |
Tom sounds very much ________ in the job, but I'm not sure whether he can manage it.
| A．interested | B．interesting |
| C．interestingly | D．interestedly |
Please remain ________；the winner of the prize will be announced soon.
| A．seating | B．seated | C．to seat | D．to be seated |