问个英语语法谢谢!
We all know it is quite common now that many teenagers,especially (27) ______ from one-child families,like to make net friends and spend lots of time chatting with them because they need someone to talk with and share their sorrow and happiness.However,is it wise for them to do so?
27.those
能否帮我讲讲它的语法谢谢!