您好!
I would like to be a policeman.(改否定句)
I___wouldn't___ ___like__ to be a policeman.
不可能是WOULDN'T LIVE,所以是答案错了。
一般就用原句的改最保险,绝对不会错,而用don't want 就不一定对,要看老师对问题的看法。所以还是用wouldn't like最好。
希望我的答案您能够满意!谢谢!
I wouldn't like to be a policeman.
I don't want to be policeman
would like = want
wouldn't like