either...or; neither...nor; both...and列举句子.

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.