when he was at college,he used to travel a lot.这句活used to已经表

when he was at college,he used to travel a lot.这句活used to已经表 句子He used to take stairs two at a time when he was young. He used to ride to school when he was young but he is used t He used to () his teaching when he was young; he used to have dinner at that _____restaurant when he was o He used to get up at six when he was young.改成一般疑问句 When he was a boy,he used to go there and watch A,to repair he ____ smoke when he was very young.A.used to B.likes to C. When he was young,he ______ the old man.A.used to call on B. when he was a boy,he used to go there and watch----- when he was a boy he used to go there and watch 为什么不能加bikes' when he was a boy,he used to go there and watch( )