4. Ребро куба 2 см. Знайдіть площу його діагонального перерізу.

The machines (l) (switch on) at 7.30 every morning and they (2) (t u r n Qff) at 5.30. The f a c t o r y (3) (lock) at 6 . 3 0 by our security guards and all the staff (4) (check) before they go home. We don't want our jam to disappear! Now as you can see, strawberry j am (5) (make) here today. And over there the jars of jam (6) (put) into boxes by our team. Hartson's jam (7) (not/export) because this country buys everything we produce. It's very important to keep our factory clean and hygienic, so everything (8) (wash) very carefully every night. Of course nobody (9) (allow) to smoke anywhere in the factory. Now I think lunch (10) (serve)

печаль мн.ч и ед.ч 2 лица

как разобрать слово "экзаменовать" по составу?