根据要求改写句子 【小题1】He goes to school on foot.(写出同义句) __________________________________________ 【小题2】We are singing and dancing in the hall.(改为否定句) __________________________________________ 【小题3】Danny likes the white coat.(对划线部分提问) __________________________________________ 【小题4】There are some students outside.(改为否定句) __________________________________________ 【小题5】I visit my grandparents twice a month.(对划线部分提问) __________________________________________