28. Be careful! The slightest spark（火花）could ______ the fireworks.
A. set about B. set off C. set out D. set up
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53天天練系列答案科目：高中英語 來源： 題型：022
2.When you travel in a forest,you should be carefu__________snakes and some other wild animals.
3.You can get from fruit some nutrition(營養)which is good__________your body.?
4.You should eat healthy diet and exercise more to get yourself prepared __________the future challenges.
5.The scientists need some information for their research__________space.
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科目：高中英語 來源：學習高手必修三英語人教版 人教版 題型：022
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When you travel in a forest, you should be carefu _________ snakes and some other wild animals．
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