Сделать эти предложения вопросительные 1. the upper extremity is connected with

1. The upper extremity is connected with the trunk by the shoulder girdle. - Is the upper extremity connected with the trunk by the shoulder girdle?

2. The lectures in Physiology are attended by all the students. - The lectures in Physiology are attended by all the students, are not they?

3. On each side of the chest the breastbone is connected with seven ribs. - Is the breastbone connected with seven or eight ribs on each side of the chest?