问题
Professor Haley told me that he__________by many of his students at the railway station
A:had been seen off
B:have been seen off
C:had seen off
D:have seen off
B:have been seen off
C:had seen off
D:have seen off
正确答案是：
同类题型
The scientist suggested ____ the experimentin a different way
Actually, what you did ______ what you said made your parents disappointed.
We should try our best to realize our ______.—Yes, I think so, wish you good luck!
mber of people invited __________fifty, but a number of them __________ absent for different reasons