my father used to smoke与used smoke的区别?used是vt后面可以直接加受词,语法上my father used smoke是没有错的吧? 我现在不明白那个to的用意了,它是介词,在这里表达的是什么呢?

the factory where my father used to work. My father is used to 什么 after supper. my father used to smoke a lot 另一种说法 my father used to smoke改为一般疑问句 My father used to eating meat和My father used to eat meat哪句话的语法对 my father -----smoke a lot.lt is bad . a.used for b.used to my father __a lot.He has given up smoking now.a used to smoking b used to smoke c is used to smokD is used to smoking My father used the bicycle to go to work.就to go to work怎么提问 My father was used to playing football.同义句转换My father （ ）（ ）to （ ） football. My father used sticks to make a house for my dog.怎么填同义句 Yesterday we went to the farm___ my father used to work for nearly ten years. I used to wait for my father 中间怎么填home to tell me a story My father used to（ take me to the conterts）.(对划线部分提问） My father used to take me to the conterts.(对划线部分提问） My father _____ talking a walk after supper.A.likeB.would likeC.used toD.is used to My father used to read newspapers after breakfast.的反义疑问句. This is the room,my father used to live.A where B why C who Dwhen My father used to be mad at me.But now he is p_ith me?