RTteenagers used to have money to spend ,and free time to s ___ it in...

RTteenagers used to have money to spend ,and free time to s ___ it in... used to used to live used to life be used to与have used to get used to 和is used to 翻译used to do used to doing is used to ,used to各是什么意思 ? used to／be used to／be used for的区别 有关used的词组used to dobe used to sth.be used to doingbe used to dobe used for doing used to be get used to翻译 用used to造句 used to be翻译 I used to be used to be to be used 用used to造句 用 used to 造句.