How did you doing spend your holiday?你假期怎么过的?我以为这句话应该是 How did you spend your holiday?但是为什么要加个doing 为什么要用强调啊？强调又是如何的用法呢？

hi baby what are you doing how?did you have cunch How are you doing? How are you doing? How are you doing? how you doing How are you doing? how are you doing How did you go how much did you How did you sleep? 改为简单句） How long did you spend doing your homework yesterday急 这句的语法是不是问题：How did you doing spend your holiday There____ many fish in the pond ten years ago.A.was B.were C.are D.isHow does your teacher often say goodbye ____ body language?A.use B.with C.at D.in—How long did you ____ ____ your homework? —About an hour. A.take,to do B.take,doing C.sp how you doing为什么用doing啊 how are you doing 还是how you doing? Let us know how you are doing in school.和Did you make it home o.k. how are you ledies doing Hello,how are you doing?