John joined the army two years ago等于___two years since he joined _英语解答

John joined the army two years ago等于___two years since he joined the army

人气：422 ℃　时间：2019-09-29 03:08:05

解答

It's为什么不是it is？也可以呀，但你这里只有一空所以就用缩写了