Сделать 2 задания а и б

Ответ:

Ex. A

1. When was Mary examined by the doctor?

2. When will the food be prepared?

3. How many times has the window been broken?

Ex. B

1. Mary wasn't examined by the doctor this morning.

2. The food won't be prepared on Friday.

3. The window hasn't been broken three times.

Объяснение: