20. When a stick is partly in a glass of water, it looks ________ it were broken.
| A．even though | B．although | C．as if | D．so that |
—Can I pay the bill by check?
—Sorry, Sir. According to the rules of our hotel, the payment ________ be made in cash.
| A．shall | B．need |
| C．will | D．can |
It was terrible. The car ________ break down just as we were going on our holiday.
| A．should | B．would |
| C．could | D．must |
—Mum, I'm tired.
—Well, if you ________ go to bed after midnight every night, what do you expect?
| A．will | B．may |
| C．should | D．can |
The children ________ lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.
| A．must have got | B．must get |
| C．should have got | D．should get |
—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 |