根据所给提示，完成句子。（1）-（4）小题，每空一词，含缩略词，（5）小题请将完整的句子写在对应的位置。

（1）She visited her grandparents last Sunday. （改为否定句）

She ______ ______ her grandparents last Sunday.

（2）Tom helps his parents to do housework after school.（对划线部分提问）

________ ________ Tom help his parents to do housework?

（3）Please teach me how I can play the piano.（改为同义句）

Please teach me how ______ ______ the piano.

（4）他更喜欢走路上学，因为那是好的锻炼方式。（完成译句）

He prefers to go to school ______ ______ because it’s good exercise.

（5）Helen, a, cake, me, bought （连词成句）

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