句型转换 根据要求改写句子，每空一词。（本大题共5分，每空0.5分）
He does some housework after school. (改为否定句)
He                                housework after school.
The girl in a red skirt is my cousin Sandy.（画线部分提问）
    girl is your cousin Sandy?
My cousin goes to the museum once a month. (画线部分提问)
                 does your cousin go to the museum?
My sister enjoys her weekends very much.（改为一般疑问句）
     your sister            her weekends very much?
John often plays basketball in his free time．(改为同义句)
John often plays basketball when                             .