1.
She (has been choosing) some dairy products: butter, cheese, milk and cream for 20
minutes.
2. My mother (has been reading) a cookbook for a month.
3. At the bakery
department I (have been buying): white and brown bread, buns, rolls and rings for 10
minutes.
4. At the market my mother (has been choosing) potatoes, carrots,
beetroots, onion, tomatoes, cucumbers and cabbage for an hour.
5. Meat
and fowl (have been boiling) for two hours.
6. We (have been talking) about fruits which are sold
at the greengrocery shop for 15 minutes.