He said that the key _____ to open the door had been lost.
| A．with what | B．with it | C．with that | D．with which |
The idea suddenly______me is that we should go outing.
| A．struck | B．striking | C．appearing | D．appeared |
As you study a globe,you may notice that ______ of the large land and areas are connected,or ______so.
| A．most;almost | B．nearly;almost | C．mostly;nearly | D．almost;most |
The houses in this village are______built of bricks.
| A．most | B．almost | C．mostly | D．nearly |
The poisonous atmosphere will surely ______a lot of people.
| A．effect | B．impress | C．cause | D．affect |
Before the first nonstop flight made in 1949,it______necessary for all planes to land for refueling.
| A．would be | B．has been | C．had been | D．would have been |