Please make sure all the lights are ______ before you go to bed.
| A．turned on | B．turned down | C．switched off | D．switched on |
Tina has been working so hard at English that she __________ the English exam.
| A．is Bound to passing | B．is bound to pass |
| C．will be bound to pass | D．will be bound to passing |
Water can absorb and __________ a lot of heat without big changes in temperature, thus creating a stable environment.
| A．give in | B．give up |
| C．give off | D．give away |
He can't go traveling very often as his work __________ almost all his time.
| A．takes away | B．takes in |
| C．takes over | D．takes up |
If he fails again, he will __________ us all __________ with him.
| A．drag; down | B．drag; in | C．drag; out | D．drag; up |
We had an anxious couple of weeks, __________ for the results of the experiment.
| A．wait | B．to be waiting |
| C．waited | D．waiting |