问题描述：
he won't be back in an hour,i think...（合并为一复合句）
he thanked me because i had helped him carry the box.(变简单句）
where does your aunt live?could you tell me?(合并为一复合句）
will he come here in an hour?do you know?（合并为一复合句）
i don't know what i shall do.(改为简单句）
he thanked me because i had helped him carry the box.(变简单句）
where does your aunt live?could you tell me?(合并为一复合句）
will he come here in an hour?do you know?（合并为一复合句）
i don't know what i shall do.(改为简单句）
问题解答：
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