Same question as of first

Dear student,

The answers are as follows:
6. (a) because she has been painting the black pot.
(b) because she has been using coal.

7. (a) because he has been jumping in potholes every day.
(b) because he has not been cleaning them properly.

8. (a) because he has been using it roughly.
(b) because he has been using it to open tough packings.

Regards