what is it used for

what is it used for What is it used for? what is it used for改宾语从句 求what is it used for?的意思 what's for it used --What’s it used for?--It’s used for________. Then what is it used for,do you know?这里为什么是is it?而不是it is? What is "small talk"used for What is a pen used for? What is a computer used for?意思 what is a (m )used for it can help you choos what's for it used连词成句