Lifting off at sunrise, the hot air balloon goes wherever the wind blow.
| A．may | B．must | C．need | D．should |
I felt sure I __________ her somewhere some day.
| A．was to meet | B．have met | C．had met | D．is to meet |
—I heard you __________ in a pub. What's it like?
—I have no idea what it is like, but I don't mind.
| A．have been working | B．will work |
| C．were working | D．will be working |
If this were not so, they __________ to migrate abroad either temporarily or permanently.
| A．were choosing | B．would not choose |
| C．have chosen | D．will not choose |
He said that he was going to the Great Wail if it __________ the next Saturday.
| A．wouldn't rain | B．didn't rain |
| C．would rain | D．doesn't rain |
Our TV sets sell well, but ten years ago no one could have imagined such a big share in the market that they __________.
| A．were having | B．had had | C．were to have | D．had |