问题描述：
把下列句子改成一般过去时
1.He finds his shoes under the bed
2.They will leave Beijing for Shanghai
3.Are the students singing in English?
4.Li Ming doesn't do well in English
5.Miss Gao isn't our English teacher
1.He finds his shoes under the bed
2.They will leave Beijing for Shanghai
3.Are the students singing in English?
4.Li Ming doesn't do well in English
5.Miss Gao isn't our English teacher
问题解答：
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