It is said that________is good for our teeth. [ ]A. chew gum B. chewin

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It is said that________is good for our teeth.    [     ]
A. chew gum
B. chewing gum
C. buying gum
D. eating gum

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举一反三

We didn"t know what clothes to wear before _________to the party.         [     ]
A. went
B. goes
C. going
D. to go

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He preferred _____ something to _____ nothing.A. to do, doing
B.  to do, to do
C. doing, do
D.  doing, doing

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在下列各句的空白处填入一个最恰当的单词，使句子意思完整，语法正确。
1. I like ______ through the jungle because I like thrilling vacation.
2. How about Florida beach? I"m sure you hope to visit somewhere ______.
3. She doesn"t want to go to Hawaii this summer. She thinks it"s too______.
4. You know English well. Could you give me some ______ for a holiday?
5. Can you ______the article into Chinese?

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I had a little trouble_______English grammar.    [     ]
A.  to learn
B.  learning
C.  learned
D. learn

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Would you mind my _______ him about it?[     ]
A. tell
B. telling
C. tells
D. told

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