问题

_____in the queue for half an hour,the old man suddenly realized he had left the cheque in the car.
A:Waiting
B:To wait
C:Having waited D.To have waited;
D:To have waited;
B:To wait
C:Having waited D.To have waited;
D:To have waited;
正确答案是:
同类题型
Are______ your_______—Yes, they are.
We can’t go abroad this year, so we will have to_____ ourselves with a holiday in Shanghai.[ ]
ay find the key to the math problem on page 107.—Ah, it’s so simple. I wonder whyI _ of that.
rried to the entrance at which the car _____,and looked forward to seeing her husband.