Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school.
| A．had left | B．would leave | C．was leaving | D．has left |
—What do you think of the two students ________ to take part in the competition?
—They are hardworking as well as intelligent.
| A．selecting | B．selected |
| C．having selected | D．to select |
A small plane crashed into a hillside five miles east of the city, ________ all four people on board.
| A．killed | B．to kill |
| C．kills | D．killing |
Our director is out. I'll have her ________ you on the matter when she's back.
| A．to contact | B．contacting |
| C．contact | D．contacted |
To answer a telephone call, the careless woman went out of the kitchen, ________ the soup ________ over the gas.
| A．left; cook | B．leaving; being cooked |
| C．leaving; cooking | D．left; being cooked |
Curious and ________， I rushed out of my dormitory when I heard the noise of three gunshots.
| A．astonishing | B．being astonished |
| C．astonished | D．to be astonished |