为什么不是she walks to go to school.求细心解答、英语不是很好= =

She walks to school.(walks to划线) 为什么是go to school,不是go school,而回家却go home呢? 为什么不是GO TO SWIMMING而GO TO SCHOOL\VISIT TO ENFLAND? she wants to go there ,too.go后面为什么不加to?不是应该是go She _seldom_ walks to school 划线提问 she walks to school变为疑问句 she usually walks to school 同义句 She walks to school every day.对walks提问 go play为什么不是go to play? Jane always walks ______ the park to go to school. Cind always walks ____ the park to go to school Cindy always walks t______ the park to go to school.