Don't _ too late.or you will feel tired in class.
---It’s a long time we last met. How is everything going?---Well, I am living a happy life.
---How long has Mr. White __________ Joan?---I’m not sure. Maybe they __________ five years ago.
----How about the pollution in the countryside?--- Luckily, it's not as serious as _______ in the big cities.
---Someone is knocking at the door. Who may it be?---It ______ be Tom. He is still in the school.
Lucy had few close friends. So she didn’t know ________ about the trouble.
get upget up
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