题目

make an effort  take in   catch fire   ever since，have a bad effect on，little by little   end up 71. Working very hard, he is making progress _______________. 72. We met ten years ago and ______________ we have been good friends. 73. I know you don’t like her, but you could ________________ to be polite. 74. Mary knocked the candle over and the table cloth _______________. 75. Spending too much time on electronic products ________________ both adults and children． 答案：71. little by little 72. ever since 73 make an effort 74 caught fire 75 has a bad effect on

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