Ответ:

1. We haven't been drawing any lines during our entire art lesson.

2. Mark's clothes look ditry because he has been painting the walls.

3. Has the famous sculpture been carving a statue out of a stone for five days?

4. I have been varnishing this painting all day, so I'm exhausted now.

5. Mrs. Robinson has been teaching ceramics and pottery making since 2001.

6. Sally has been making this mosaic with recycled materials for five months.

7. Have they been displaying your calligraphy work at the exhibition for two years?

8. I haven't been doodling anything all lesson.

Объяснение: