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

1) Victor will be free tomorrow evening

Victor was free yesterday evening

2) John will be in Africa next month

John was in Africa last year

3) I will be very busy tomorrow

I was very busy last week

4) She will be at the lecture at 5 o'clock

She was at the lecture on Tuesday

5) The child will be 10 yers old next month

The child was 10 years old yesterday

6) This work will be interesting

Nhis work was interesting next year

7) The expedition will be in Africa next month

The expidition was in Africa last Sunday

8) The film will be long

The film was ling

9) My mother will be at home at 10 o'clock

My mother was at home at 3 o'clock

10) The students will be in the institute on Friday

The students was in institute yesterday