A child _____ parents are dead is called an orphan.
| A．who | B．whom | C．whose | D．which |
When I was a child，I________watch TV whenever I wanted to.
| A．should | B．could |
| C．must | D．need |
It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.
| A．may | B．couldn’t |
| C．should | D．needn’t |
—Why are your eyes so red? You________have slept well last night.
—Yeah，I stayed up late writing a report.
| A．can’t | B．mustn’t |
| C．needn’t | D．won’t |
Harry is feeling uncomfortable.He ________too much at the party last night.
| A．could drink | B．should drink |
| C．would have drunk | D．must have drunk |
I ________ myself more－it was a perfect day.
| A．shouldn’t have enjoyed |
| B．needn’t have enjoyed |
| C．wouldn’t have enjoyed |
| D．couldn’t have enjoyed |