either

1. Either dye or paints are used to colour cloth. 不论是染料还是颜料都是用来染布的. Neither she nor I go shopping tonight. 我和她晚上都不去购物. Both you and I are students. 我和你都是学生2.过去进行时的构成 be+doing ，表示在过去的某一时刻正在发生的事情主语+was/were+ving+其他 3.The cat will scratch you if you pull her tail. 如果你拉猫的尾巴，它会抓你.。