—You seem tired, David.
—Yes. I _____ all day long and can’t wait to go to bed now.
| A．am working | B．had been working |
| C．have been working | D．was working |
--Did you like your trip to Xi’an during the Summer vacation?
--____. It was too hot and there was too much traffic.
| A．Not a little | B．Don’t mention it |
| C．Not really | D．Not exactly |
She couldn’t find her sonshe had dropped him off.
| A．when | B．until |
| C．although | D．where |
I told them not everybody could pass the test, ____?
| A．could he | B．didn’t I |
| C．didn’t you | D．could they |
--When shall we start the reconstruction of the old buildings?
--Not untilby the local government.
| A．will our program be approved |
| B．our program will be approved |
| C．has our program been approved |
| D．our program has been approved |
The man has been in____ doctors describe as a vegetative(植物的) state for six years.
| A．what | B．which |
| C．that | D．how |