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 could use | D．did we answer |
Not until I came home last night ________ to bed.
| A．Mum did go | B．did Mum go |
| C．went Mum | D．Mum went |
It was ________ he came back from Africa that year ________ he met the girl he would like to marry.
| A．when；then | B．not；until |
| C．not until；that | D．only；when |
Barry must have visited the Eiffel Tower before，________he?
| A．mustn’t | B．hadn’t |
| C．hasn’t | D．needn’t |
________，he talks a lot about his favorite singers after class.
| A．A quiet student as he may be |
| B．Quiet student as he may be |
| C．Be a quiet student as he may |
| D．Quiet as he may be a student |
________ and we’ll get everything ready for the taking off.
| A．Have one more hour |
| B．One more hour |
| C．Give one more hour |
| D．If we have one more hour |