The villagers, ______ damaged by the flood, were given help by the International Red Cross.
| A．all whose houses | B．all their houses | C．all of whose houses | D．their all houses |
We must try our best to the river being polluted any more.
| A．separate | B．keep | C．prevent | D．guard |
_____ he can pass the driving test is quite uncertain.
| A．If | B．Whether | C．That | D．What |
I tried phoning her office,but Icould not______.
A,get along B,get on C,get to D,get through
Sam_____some knowledge of the computer just by watching others working on it.
A,brought up B,looked C,picked up D.set up
When______where he was born,John said he was a New Yorker.
A,asking B,being asked C,asked D,was asked