Перепишите предложение, сделав его Cleft sentence. Check your equipment before you give your presentation.

Варианты ответа

1. A.It is the equipment that you need for presentation.
2. B.At first you should check your equipment.
3. C.Check your equipment at first.
4. D.First of all you need to check your equipment.
5. E.What you need to do at first is to check your equipment.верно