One moment he wasn't there, the next he was.
他一分鐘前還不在那里，一會兒又在了。
She wasn't happy with our work and made us start over.
她對我們干的活兒不滿意，要我們返工。
It wasn't quite as simple as I thought it would be.
這事不完全像我想的那么簡單。
Now look here, it wasn't my fault.
喂，那不是我的錯！
She didn't even call to say she wasn't coming.
她甚至沒打電話來說一聲她不來了。