Перепишите следующие предложения, определите в них
видо-временные формы глаголов и укажите их инфинитив.
1. Mr Smith is reading a letter from our company now.
2. The engineers studied the catalogues of Dun & Co yesterday.
3. We'll deliver the goods in April.
4. Our manager usually makes contracts with Smith & Co.
5. Today they have shown the new model of the equipment to the Russia
businessmen.
6. The secretary was looking through the mail yesterday at three.​