I just wonder that makes him so excited.
| A．why it does | B．what he does | C．how it is | D．what it is |
—Doyou think we should accept that offer?
—Yes, we should, for we ______ such bad luck uptill now, and time ______ out.
| A．have had;is running |
| B．had；is running |
| C．have；has been run |
| D．have had；has been run |
—Haveyou got any job offers?
—No. I __________
| A．waited | B．had been waiting | C．have waited | D．am waiting |
Teenagers __________ their health because they play computer games too much.
| A．have damaged | B．are damaging | C．damaged | D．will damage |
I __________ my guest off at the station tomorrow.
| A．am seeing | B．see | C．saw | D．have seen |
They __________ to work until they get a rise.
| A．were not going back |
| B．are going back |
| C．are to go back |
| D．are not going back |