. Kate's ambition to become a nurse _____ from a desire to help others.
| A．prompted | B．promoted | C．programmed | D．proceeded |
-I'll come to see your performance at 9：00 tomorrow evening.
-I'm sorry, but by then my performance __________ and I __________ re-porters in the meeting room.
| A．will have ended; will be meeting |
| B．will end; will meet |
| C．will be ended; am going to meet |
| D．is to end; will meet |
You'd better not ring me up between 9:00 and 10:00 tomorrow. I __________ an important meeting then.
| A．have |
| B．had |
| C．was having |
| D．will be having |
I __________ up to $5，000 by the time the new term begins in September.
| A．have saved |
| B．will have saved |
| C．will be saving |
| D．had saved |
-We'll go to the party to be held in the Grand Theater at 8： 00tonight. Could you join us?
-I'm afraid I can't. I __________ the paper with my instructor.
| A．am discussing |
| B．have discussed |
| C．will be discussing |
| D．will have discussed |
-Can I come to see you at ten o'clock, John?
-I'm sorry, Jo, but I __________ my uncle then.
| A．visited |
| B．will visit |
| C．will be visiting |
| D．am visiting |