— Excuse me, what's the time for Train 8201?
— It _____ at seven and you can wait in the hall.
| A．left | B．leaves |
| C．will leave | D．has left |
_____into the house, the thief was soon caught by the police.
| A．Having seen him steal | B．Seen stolen | C．Seen stealing | D．Seeing him steal |
In such a fierce competition, a person has to make every effort if he ______.
| A．has succeeded | B．is to succeed | C．would succeed | D．will succeed |
Only when ______ possible to settle the problem.
| A．does the chief editor come will it be | B．the chief editor comes will it be |
| C．has the chief editor come will it be | D．the chief editor comes it will be |
I was told that there were about 50 foreign students ____ Chinese in the school, most _____ were from Japan.
| A．study; of whom | B．study; of which | C．studying; of which | D．studying; of whom |
You look very tired. You ____ late last night.
| A．needn’t sit up | B．didn’t need to sit up | C．shouldn’t sit up | D．needn’t have sat up |