When he was opening the door, he was ___________ that he was being followed by a policeman.
| A．conscious | B．casual | C．careful | D．doubtful |
—I’m afraid the project may be several days behind schedule due to bad weather.
—Don’t worry. Three more assistants will be _______ in no time at all.
| A．at your convenience | B．at your command |
| C．at your risk | D．at your request |
Ding Junhui plays _______ Gary Wilson in the semifinal of the 2015 World Snooker China Open in Beijing, April 4, 2015.
| A．over | B．for | C．against | D．with |
—Mum, Dad ought to stop working?
—Yes, he has a bad headache because he _______ too long.
| A．read | B．has been reading |
| C．had read | D．is reading |
After the death of her mother, the girl was sold to a rich man just in the neighboring area, from _______ house she tried to escape twice.
| A．whom | B．his | C．whose | D．which |
It is of great importance _______ parents say and do in family life, which may have a life-long effect on their children.
| A．what | B．that | C．how | D．why |