. You’d better start it right away ______ you forget it.
| A．in case of | B．unless | C．before | D．since |
Last term our maths teacher set so difficult an examination problem _____ none of us worked out.
| A．that | B．as | C．so that | D．which |
A cook will be immediately fired if he is found ______in the kitchen.
| A．smoke | B．smoking | C．to smoke | D．smoked |
It was with great joy ______ he received the news that his lost daughter had been found.
| A．because | B．which | C．since | D．that |
Henry can’t attend the party _______ at Tom’s house at present because he is preparing the speech at the party _______ at Marie’s house tomorrow.
| A．held; being held | B．to be held; to be held | C．to be held; held | D．being held; to be held |
I am glad that the Olympic Games will be held in 2008 in China, _______ ?
| A．shall we | B．aren’t I | C．won’t I | D．won’t they |