____carefully for a long time，the opening was a great success
| A．To have been prepared |
| B．Having been prepared |
| C．To be prepared |
| D．Being prepared |
Nobody but doctors or nurses and those ______ by Dr Hu ______ to enter the patient’s room.
| A．invited; is allowed | B．are invited; are allowed |
| C．being invited; allowed | D．invited; are allowed. |
______ I am willing to help, I do not have much time available.
| A．Unless | B．If |
| C．While | D．Since |
— What do you think I should do?
— I think you should call him back ______.
| A．out of spirits | B．out of mind |
| C．out of patience | D．out of respect |
— What time is it?
— I have no idea. But just a minute, I ______ it for you.
| A．check | B．checked |
| C．will check | D．would check |
In the opinion of some students, they don’t study for pleasure — their main ______ is to enter a famous university.
| A．policy | B．motivation |
| C．authority | D．devotion |