. _____in a science competition, the three students were awarded scholarships totaling
$ 21, 000.
| A．To be judged the best | B．Judged the best |
| C．Having judged the best | D．Judging the best |
I’m stuck is used __________.
A. when you have a good idea
B. when you go on talking without stop
B. when you are thinking something is too easy
D. when you can’t continue with something because it’s too difficult
There is no doubt ______ smoking can seriously damage our health.
| A．that | B．whether | C．why | D．which |
A small plane crashed into a hillside five miles east of the city, ____all four people on board.
| A．get along | B．kills | C．killing | D．to kill |
______ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai..
| A．To be tired | B．Tired | C．Tiring | D．Being tired |
She was leaning against a tree as if ______ for someone.
| A．waited | B．wait | C．to wait | D．waiting |