You won't pass the exam _____you study hard.A. if B. when C. Unless
--- Would you like some bananas?---__________________________
I think ____ with friends is better than_______.
— Tom, please read the first story to us.— I’m sorry, Mr Wang. I __________ my story book at home this morning.
Don't worry, sir. I'm sure I can run to catch up with them.A. slowly enough B enough slowlyC. fast enough D. enough fast
They looked _____ each other and kept their secret _____ themselves.