Call a taxi, ______ you will miss the train.
| A．and | B．though | C．because | D．or |
Don’t make ________in class.
| A．voice | B．noise | C．sound | D．cry |
_______ you do, don’t miss this exhibition, for it’s so hard for me to get the tickets.
| A．Whatever | B．However | C．If | D．Who |
You shouldn’t watch TV____ school nights.
| A．at | B．in | C．on | D．for |
--- I can’t fall asleep.
--- You get up and try to do something ______lying in bed.
| A．when | B．instead | C．instead of | D．while |