Carelessness always contributes _______ car accidents. Therefore, drivers are advised to concentrate their attention _______ driving.
| A．for; to | B．to; on | C．with; on | D．in; to |
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 |