5. Put the sentences into the future and past tense changing the verb to
be and using suitable adverbial modifiers of time: yesterday, tomorrow, next
week, last month, next year, at 5 o’clock, etc.
1. Victor is free in the evening.
2. John is in America.
3. I am very busy.
4. She is at the lecture.
5. The child is 10 years old.
6. This work is interesting.
7. The expedition is in Africa.8. The new film is long.
9. My mother is at home.
10. The workers are at the factory.
11. The students are at the Institute