Tugas 2 Halaman 5 no 13-16

13.  Student A:Knock on the door
       Teacher:What is she doing?
       Student B:She is knocking on the door

14.  Student A:Sit on the floor
       Teacher:Who is sitting on the floor?
       Student B:Alex is sitting on the floor

15.  Student A:Shake hands with someone
       Teacher:What is he doing?
       Student B:He is shaking hands with his friend

16.  Student A:Look at your watch
       Teacher:What are they doing?
       Student B:They are looking their watch