一、1.pronounces2.slowly3.spoken 4.mistake 5.solution 6.impressed 7.challenges
二、1.slowly 2.to use 3.spoken 4.pronunciation5.writing6.worried 7.right
三、1.First of all 2.Later on 3.laugh at 4.take lotsofgrammar notes 5.couldn't pronounce 6.already sung 7.specialsuggestions8.wactching;boring
四、1.don't;either 2.to study 3.spent;on 4.too;to5.Howdoes
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