While income worry is _______ rather common problem of the aged, loneliness is another problem that _______ aged parents may face.
| A．a; the | B．the; / | C．a; / | D．the; the |
-How did you like the concert last night?
-I enjoyed it very much, but the dancers __________ a better job.
| A．could have done |
| B．must have done |
| C．could do |
| D．had done |
He made good preparation for the exam. Otherwise, he __________ such rapid progress.
| A．should not have made |
| B．needn't have made |
| C．could not have made |
| D．must not have made |
You __________ the day off from work, which created a burden for everyone else.
| A．shouldn't have taken |
| B．mustn't have taken |
| C．couldn't have taken |
| D．wouldn't have taken |
We __________ the difficulty together, but why didn't you tell me?
| A．should face |
| B．might face |
| C．could have faced |
| D．must have faced |
"If you __________ to my party yesterday, you __________ the reason why I am wearing these clothes now. "Helen said to me.
| A．came; had known |
| B．had come; would know |
| C．had come; would have known |
| D．came; would know |