一How did you break my most valuable vase?一Sorry,but I broke it by accident.
Here____ some of your books.
Tom often eats _____ good breakfast ____ the morning.
—_______ do you eat breakfast? —At seven-thirty.
---Are you good _____children? ---Yes , I think I can help them ______ English.
He can swim very well, ______ he doesn’t want to join the club.