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my grandfather does ____(exercise/exercises) every day why
人气:437 ℃ 时间:2020-02-02 15:56:33
解答
exercise 这里老人肯定是锻炼身体
用法:
当为"锻炼"时,如:"do exercise"不加”S”
当为”练习”时,如:”eye exercises,math exercises”加”S”
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