什is being used么意思?used是什么词性?

什is being used么意思?used是什么词性? 翻译 Being alone is a class that teach us growth.I'm used to being alone! The username chosen is already being used. that’s what being social is about—the other person,not us.中文意思 单项选择：Mother ____ us to be polite when we were young .A:is used to tellingB:was used to tellC:used to tellD:used to telling 翻译中文意思并分析、讲解一下, 这个matlab报错什么意思Warning:MATLAB Toolbox Path Cache is out of date and is not being used.Type 'help toolbox_path_cache' for more info 程序出错：The variable 'y' is being used without being initialized. Being in love is easy,being married is not.It is to be cherished.什麼意思? 这句里being 属于哪种用法?then decide whether each word is being used as a verb or a noun其实这是一道填空题的提示look at the sentences below and find the correct word to fill in the blanks.then decide whether each word is being us Being honest is important for us改同义句 Being seen makes us happy and dressing is it is kept in the room by us 和 it was kept in the room by us 和it is being kept in the room by us具体意思有什么区别啊 E-mail English is a new kind of written English that is being used to save中being used 书上说是习惯做某事,但我觉得是be used for 被用来做某事的意思,求这句话的具体解析和翻译 What is a computer used for?意思 is used to working啥意思? Being on a diet is not good for us中“Being on ______ plenty of water in this river.A.There used to being B.there used to beC.There is used to beingD.There was used to be being happy is a duty什么意思