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更正在括号处已经给出:
Miss Jones (teaches) physics in New York high school.Last month
she explained (加入to) her class about sound,and she decided to test them to see how successful she (had) been in her explanation.She said to them,"Now I have a brother in Los Angeles.If I were calling you on the phone and at the same time you were 75 feet away.
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1年前
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