You’d better look up the new word in a dictionary____ you don’t know it.

— Would you like to go to the cartoon show with me?— It sounds like fun, ______I’m too busy.

Work hard, ___________ you’ll get good grades.

--Remember this, boys and girls. _____careful you are,       _____mistakes you will make.---We know, Miss Wang.

 We won’t start the meeting ___ our teacher arrives.