He doesn't seem to mix freely with anybody else. Ru不明白请追问，要是满意请【采纳】 Zhu学习进步
He/She is not what he/she has ever been. Hou面要用现在完成时，强调对现在的影响，他Yi经不是他之前的样子了
正确翻译： They are not as friendly as they used to be.
attempted是形容词 指： attempted ( Fan罪等)未遂的
he doesn't like me as much as he did before.
He always feels uncomfortable stomach.
He is behaving like nothing has happened (Zheng在进行） He behaves like nothing has happened (Xian在）
he is not like ago any more Man意的话 望采纳
She doesn't speak and smile just like the past. She doesn't speak and smile just as the past.