—I have got a headache.
—No wonder.You___in front of that computer too long.
| A．work | B．are working |
| C．have been working | D．worked |
Go on _______ the other exercise after you have finished this one.
| A．to do | B．doing | C．with | D．to be doing |
There was a terrible noise ______ the sudden burst of light.
| A．followed | B．following | C．to be followed | D．being followed |
If it is fine tomorrow, we ______ a football match.
| A．have | B．will have | C．has | D．shall has |
When he was at school, he ______ early and take a walk before breakfast.
| A．will rise | B．shall rise | C．should rise | D．would rise |
In the past 30 years China ______ great advances in the socialist revolution and socialist construction.
| A．has made | B．have made | C．had made | D．having made |