C1 use not as/so...as to rewrite thế sentences:
16.The students write less papers than they did last year.
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17.The paper mill puts out more products than it did two years ago.
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18.Miss Huong Tram is the best student in her English class.
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19.This boy doesn’t spend much money. He spent much money last month.
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20.She doesn’t get up late. She used to get up very late during her holidays.
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