It was very cold, so we __ the fire__ all the time/
| A．have.. burnt | B．had… burned | C．had… burning | D．have… burning |
China Mobile has to face the problem that more and more people in China prefer to choose ______ cheaper wireless phone service known as ______ “Little Smart”.
| A．a; the | B．a; 不填 | C．the; 不填 | D．the; the |
It is not easy to learn English well but if you ______, you will succeed in the end.
| A．hang up | B．hang about | C．hang on | D．hang around |
Water, which seems to be so simple and common, is ______ makes life possible.
| A．that | B．which | C．what | D．where |
William Shakespeare occupied a ______ position in English literature.
| A．most unique | B．unique | C．very unique | D．least unique |
We have been told that under no circumstances ______ the telephone in the office for personal affairs.
| A．may we use | B．we may use | C．we use | D．do we use |