It was after he got what he had desired _____ he realized it was not so important.
| A．that | B．when | C．since | D．as |
He has lost the key to the drawer _____ the papers are kept.
| A．where | B．on which | C．under which | D．which |
-----How do you find the book? ------_____________.
| A．Great. | B．With the help of my brother. |
| C．By looking around. | D．By chance. |
Joe Jones, the eldest of the eight children, had to ________ out of high school at the age of 16 to help his father on the farm.
| A．leave | B．drop | C．fall | D．go |
He missed _______ when he was in Africa.
| A．killing | B．to be killed | C．to kill | D．being killed |
In our town, wood can ___________ a fire.
| A．be used to make | B．be used to making |
| C．use to make | D．used to making |