He was wearing a shirt yesterday.为什么用过去进行时

All he was wearing was a nylon vest.为什么要用was wearing而不用wore? He was () a business suit.空里添wearing 还是介词in he was wearing a red tshirt用have on 改写 he's wearing a purpie He was wearing a shirt yesterday.为什么用过去进行时 He was wearing navy sweats with a plain black t-shirt He was wearing a stocking over his head.该怎样翻译呀?是英语中的俚语吗? I remember he was wearing a light shirt under the sweater请翻译!谢谢! HE IS WEARING A SHIRT AND [A ] Monica: Was he wearing a stunning blue suit? Phoebe: And-and a power tie? power用在这是啥意思啊? He is wearing a green sweater He was wearing dark glasses to protect his eyes ____ the sun.A.in B.from C.under D.with He was wearing a vest __his shirt如题（介词填空）.另外请问while跟when 什么区别 I r___ Tom the moment I saw him,though he was wearing a pair of dark nutrition. He is always wearing glasses.He m____ be a teacher. My wife was wearing a hat that looked like a lighthouse.wearing 正在进行时? I was the only one person wearing a costume.中为什么用 wearing How is Mary?怎么回答A、He is fineB、Shi is goodC、Shi is 11D、Shi is fine