Unit 2.ppt
课件33张PPT。Unit 2 Let’s talk about the past .
1.一般现在时表示_______________________________________________ ,
谓语______________________ , 助动词___________________ ,
一般疑问句________________ , 否定句____________________,
缩写成________ ____________ .
经常发生、反复发生,习惯爱...