The fire was finally brought under control, but not______ heavy damage had been caused.
| A．before | B．after | C．since | D．until |
Not until the teacher explained the importance of getting up early ______ we promise to come early.
| A．should | B．would | C．did | D．could |
—How about the party ______ at Mary’s house?
—Wonderful ! Everyone had a good time．
| A．holding | B．to hold | C．being held | D．held |
This is the best way ______ I have thought of ______ the problem.
| A．that; solving | B．in which; solving |
| C．which; to solve | D．/; to solve |
Great attention must be paid ______ welfare, especially in the poor area.
| A．develop | B．to develop | C．to developing | D．developing |
At this time tomorrow ______ over the Atlantic.
| A．we’re going to fly | B．we’ll fly |
| C．we’ll be flying | D．we’re to fly |