| 1. 难度：中等 | |
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It’s said that________of the water around the world polluted． A．two third；has B．two thirds；have C．two third；are D．two thirds；is
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| 2. 难度：中等 | |
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Last term he had problems________math． A．to learn B．learn C．to learning D．learning
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| 3. 难度：中等 | |
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—________she________to Singapore before？ —Yes．She________there last week． A．Did；go；went B．Has；been；went C．Have；been；went D．Will；go；went
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| 4. 难度：中等 | |
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There are________people who want to travel to China． A．two thousands B．two thousand of C．thousands of D．thousand of
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| 5. 难度：中等 | |
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Singapore is a good place________a holiday． A．to take B．take C．to taking D．taking
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| 6. 难度：中等 | |
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Three fifths of the students in our school________boys． A．is B．are C．am D．be
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| 7. 难度：中等 | |
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These boys had problems________to the top of that mountain． A．getting B．to getting C．get D．to get
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| 8. 难度：中等 | |
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—Will she come to your birthday party？ —________． A．I don’t fear B．I won’t fear C．I fear not D．I fear won’t
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| 9. 难度：中等 | |
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You________the beauty of nature whenever you________here． A．enjoy；come B．will enjoy；come C．will enjoy；will come D．enjoy；will come
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