–Little boy, don’t play with the knife, __________ you’ll cut your hand.  –Sorry, I won’t.

—          does he have music lessons?     —Twice a week.

_______ Peter is old and weak, he still has to work.

Mr. Green and Mr. King have taught English at Beijing Sunshine Secondary School ________ they came to China two years ago.

--Every day, my mother tries to spare some time to chat with me ______ she is very tired after a whole day’s hard work.  --How kind she is!