86.while改为when 87.heavy改为heavily 88.and改为or 89.see改为saw 90.must后加have 91.and后加got / was 92.which改为where 或前加in 93. in—at 94. a—an 95. right
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86.while改为when 87.heavy改为heavily 88.and改为or 89.see改为saw 90.must后加have 91.and后加got / was 92.which改为where 或前加in 93. in—at 94. a—an 95. right
略