ex3. change from phrase into clause
1. we hurried to school so as not to be lare
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2. he climbed the tree in order to get a better view
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3. some young people like to earn their own living in order to be independent of their patents
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4. we should do morning exercises so as to improve our health
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5. we should take advantage of the scientific achievements of the world soas to develop our national economy
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6. every people in the world must unite their efforts to maintain and protect peace
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7. she put on warm clothes so sa not to catch the cold