His quarrel with his boss ______ him his job.
| A．speed | B．cost | C．spent | D．saved |
His composition won first prize, ______ made him too happy to sleep for nights.
| A．what | B．that | C．which | D．where |
We are waiting ______ for your absence.
| A．your explanation | B．to have your explanation |
| C．about your explanation | D．having your explanation |
With little knowledge about the area he succeeded ______ many researchers failed.
| A．the place where | B．in place | C．while | D．where |
A very beautiful scene spreads in front of the mountain, at the foot of which ______.
| A．lies a small village | B．does a small village lie |
| C．a small village lies | D．is lying a small village |
What was unexpected was that the disrespectable fellow ______ the old man.
| A．could have robbed | B．should have helped | C．should rob | D．might have helped |