have to wear a helmet的意思

have to wear a helmet的意思 Do I have to wear a helmet?的中文翻译 have to wear a helmet是什么意思 we have to wear a uniform to school意思? We didn't have to wear a uniform at school.的中文意思 wear a sweater的意思 1.do you have to wear uniform today?2.do you have to wear a you have to wear a uniform at school同义句 We have to wear a uniform.（改为否定句） Does he have to wear a uniform at school? Do you have to wear a uniform at school? Do you have to wear a u______at school?