_____in the queue for half an hour, the old man suddenly realized he had left the money in the car.
| A．Waiting | B．To wait | C．Having waited | D．To have waited |
Not until I was standing on the edge of death ____ how much I wanted to live.
| A．I realized | B．did I realize | C．I had realized | D．had I realized |
The students discussed the experiment that they would like to see ____ next year.
| A．carry out | B．carrying out | C．carried out | D．to carry out |
This dictionary is _____ to me, but that one is _____ .
| A．great help; helpful | B．a great help; of little use |
| C．important; of few importance | D．very helpful; of no any use |
Her husband earns ____ she while they do the same amount of work.
| A．twice as many as | B．as twice much as |
| C．twice more money as | D．twice as much money as |
It was seven o'clock ____I got to school this morning, ____ made our teacher very angry.
| A．when; that | B．that; that | C．that; when | D．when; which |