1. Choose the appropriate tense-form.1. A. - What have you done/have you been doing with my knife? Where is it? B. - I've put it back in your drawer.A. - (taking it out) What have you done/have you been doing with it? The blad...

1. Choose the appropriate tense-form. 1. A. - What have you done/have you been doing with my knife? Where is it? B. - I've put it back in your drawer. A. - (taking it out) What have you done/have you been doing with it? The blade's all twisted! Have you been using/have you used it to open tins? 2. A. - Do you see those people on that little sandy island? They have been waving/have waved their handker­chiefs for the last half-hour. I wonder why. B. - They need help. The tide is coming in and very soon that island will be under water. Have you sat/have you been sitting calmly without doing anything to help them? A. - I have never been/have never been being here before I haven't been hearing/haven't heard about the tides here.  What's up? What are you looking for/have you been looking for? Have you lost/have you been losing something? 3. A. - Are you still painting/have you been still painting your country house? B. - Yes. I'm painting/I've been painting it for several days already. I think it'll look beautiful when it's finished.