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You will achieve nothing        you work hard.

We didn’t go home         the old man was sent to the hospital.

Don’t talk _____ drink in class.

—Would you like to go to the park with me?
—I’d love to, ________ I’m afraid I have no time.

– Our holiday in Beijing cost a lot of money.
– Did it? Well, that doesn’t matter ___________ you enjoyed yourselves.
A. unless                      B. if                       C. while

  _______ was most important to her, she told me, was her family.
A. It        B. This        C. What            D As

It’s snowing heavily outside. Put on your coat,_________ ,you’ll catch a cold.

You can't watch TV _______ you finish your homework.

Come on! You will catch up with others _______ you work hard.

I got up late yesterday, ____ I had to take my breakfast with me on the bus.