1) She had been living in Moscow for ten years when her sister came to live with her. 2)Our teacher has come. Now he is speaking with our monitor.
3)They were speaking when I looked at them.
4)What are you doing here?- I am preparing for my report.-How long have you been preparing for it? -Oh,I have been working since morning.
5)He had been teaching at school for five years when the war broke out.
6) She has been studing English since last year.
7) Have you ever been o London?-Yes? I was there last summer.
8) What is your friend doing now?- She is having dinner.She usually has dinner at this time.
9) I have bought a new dress.I * ll show it to you tomorrow when you come to my place.