The new family planning policy allows a couple to have a second birth on condition that is an only child and they have only one child.
You are really very kind. I’ll never forget the _________ you have done to me.
A computer is so useful a machine ________ we can use everywhere.
— Why didn’t you come to Mike’s birthday party yesterday? — Well, I ____, but I forgot it.
It was quite a serious accident, _____ caused by careless driving.
Jane was disappointed that most of the guests_______when she _____at the party.