I don’t allow you ________ so high a mountain.
| A.to risk going | B.risking to go | C.going to risk | D.risk going | 
I’ve always treasured the watch______ to me on my eighteenth birthday.
| A.gives | B.given | C.to be given | D.being given | 
He had no special ______ and was treated just like every other prisoner.
| A.privileges | B.possessions | C.identifications | D.treasures | 
—Did you find the missing couple in the mountain yesterday?
 —No, but we ______ to get in touch with them ever since.
| A.had tried | B.have tried | C.have been trying | D.had been trying | 
After working for two years, Tim Martin was ______ as the top manager in charge of the company.
| A.ranked | B.classified | C.appointed | D.recognized | 
I’m ______ a diet, since I put ______ weight easily.
| A.in; on | B.on; in | C.in; in | D.on; on |