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33. There _____ be any difficulty in passing the oral test since you have practiced a lot in the school.

30. Only those who have experienced hardship ____ well aware of what happiness means. 

24．----It's very cloudy and freezing cold．
-----  Yes,  I' m afraid it________be snowing tonight

When he was there, he _____ go to that coffee shop at the corner after work every day.

------She looks very happy. She ______ have passed the exam.
------I guess so. It’s not difficult after all.

29. About one in ten computer game players show signs of addictive behavior that      have
negative effects on their family, friends and school work , according to a new study.

       
19．—My cat’s really fat.
—You ______ have given her so much food.

28．— Is Mike going there by bus?    
— He ought to, but he ________ not. He likes riding his bike.

25．His suggestion_______to see the film Avatar interested every one of us.

24．—Guess what! I have got A for my term paper.
—Great! You  _______  read widely and put a lot of work into it.