Being exposed to loud music too much ________ caused hearing loss in some teenagers.
| A．is | B．has | C．are | D．have |
You ought to tell him the truth,________?
| A．don’t you |
| B．oughtn’t you |
| C．will you |
| D．shall you |
The plant is dead. I ________ it more water.
| A．will give |
| B．would have given |
| C．must give |
| D．should have given |
I promised to get there before 5 o’clock, but now the rain is pouring down. They ________ for me impatiently.
| A．may wait |
| B．ought to wait |
| C．could wait |
| D．must be waiting |
It was playing computer games that cost the boy plenty of time that he ________ have spent doing his lessons.
| A．might |
| B．must |
| C．ought to |
| D．could |
—________ I return the dictionary within three days?
—No, you ________. You ________ keep it for five days.
| A．May; needn’t; will |
| B．Can; mustn’t; would |
| C．Must; don’t have to; can |
| D．Shall; can’t; should |