2016-2017学年 人教版 必修四 Unit 1 Women of achievement Grammar课件 (7)
2016-2017学年 人教版 必修四  Unit 1 Women of achievement Grammar课件 (7)第4页

Look at the following two sentences from the text and observe the differences between them.

Examples: Our group are all going to visit them in the forest. Our group is going to be very tired and dirty by the afternoon.