He had to___ before they finished the course because they were not well disciplined.
It's the first time that he has been to Australia,________?
You and I could hardly work together,________?
He must be helping the old man to water the flowers,________?
I told them not everybody could run as fast as you did,________?(2011·重庆)
It was from only a few supplies that she had bought in the village ________ the hostess cooked such a nice dinner.