The head of the company promised to deal with matters of this sort ____ he returned to his office.
| A．the moment | B．while |
| C．by the time | D．until |
The police are trying to find out the ____ of the woman murdered in the bathroom．
| A．evidence | B．characteristic | C．status | D．identity |
Li Qun, who graduated fromuniversity in South China, is now studying for her degree in ____ European country,
| A．a, a | B．the, an | C．the, a | D．an ,a |
___ it rain tomorrow, we would have to cancel the football match.
| A．Were | B．Would | C．Should | D．Will |
－Sunday is a public holiday, ___ children should get close to nature.
－But most of them have several lessons to attend.
| A．where | B．which | C．in which | D．when |
I have finished a large part of the novel written by Dickens, the rest of which ___ very difficult.
| A．is | B．are | C．was | D．were |