wasn t的动词原形怎么写
原形是 was not，例如： 1.I was not prepared for all the problems it caused.我对这事引起的诸多麻烦毫无防备。 2.She was not used to mixing with people of high social rank.她不习惯和社会地位很高的人搅和在一起。 3.It was not a propitious time to start a new business.那不是营业开张的吉时佳日...