I __________ use a clock to wake me up because at six o'clock each morning the train comes by my house.
| A．couldn't |
| B．mustn't |
| C．shouldn't |
| D．needn't |
Henry set up a club for football fans, ________ he invited all his friends．
| A．for whom | B．to whom | C．to which | D．from which |
In my old school album there are some pictures of some teachers ______ can’t be found in yours．
| A．which | B．who | C．those | D．they |
Now teenagers like to go to the fast food restaurants, ______ eating doesn’t take much time．
| A．which | B．who | C．what | D．where |
For weeks the street hasn't been cleaned by the cleaners, _____ makes it very dirty．
| A．who | B．which | C．that | D．this |
The artist ______ the judge gave a prize is the teacher _____ I have been taught painting for two years．
| A．from whom; by whom | B．to whom; who |
| C．from whom; who | D．to whom; by whom |