学帮网My sister works in a library.（改为否定句）
来源：学生作业学帮网 编辑：学帮网 时间：2024/05/30 09:07:30
My sister works in a library.（改为否定句）
My sister doesn't work in a library.
My sister doesn't work in a library.
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来源：学生作业学帮网 编辑：学帮网 时间：2024/05/30 09:07:30
My sister works in a library.（改为否定句）
My sister doesn't work in a library.
My sister doesn't work in a library.