20．---I got up at five this morning, I thought it was Friday．
---You _____ so early．It is Sunday today; you don’t have to go to work．
| A．mustn’t have got up | B．needn’t have got up |
| C．needn’t get up | D．mustn’t get up |
I have ______ my husband again and again not to smoke , but I can’t ______ him．
| A．persuaded, advise | B．advised, persuade |
| C．suggested, persuade | D．suggested, advise |
He asked Mary whether she had passed the exam ________．
| A．yesterday | B．the day before | C．the day ago | D．before the day |
More than _______ of the classmates in my class ____ fond of pop music．
| A．two-third, is | B．two-thirds, is |
| C．second-third, are | D．two-thirds, are |
She will tell us that each of us has a role ______ in making the earth a better place to live．
| A．to have played | B．to play | C．to be played | D．to be playing |
—How do you think he managed to improve his English in such a short time?
—______ four hours on it every day．
| A．Because of spending | B．To spend |
| C．By spending | D．Spending |