31. Last week, only two people came to look at the house, ____ wanted to buy it.
| A．none of them | B．both of them | C．none of whom | D．neither of whom |
13. English we must work hard at it.
| A．So as to master | B．Mastering | C．Mastered | D．To master |
12. He said he was not optimistic the future of that country.
| A．of | B．with | C．on | D．about |
11. The little boy many questions at me, leaving me embarrassed.
| A．cut | B．made | C．fired | D．loaded |
10. -----Can you attend the meeting tonight?
-----No,the manager about something important.
| A．I will have seen | B．I’ll be seeing | C．I should see | D．I have seen |
9. It long before we the result of the experiment.
| A．will not be, will know | B．is, will know | C．will not be, know | D．is, know |