Question

Поставьте модальные глаголы в Past Simple или Future Simple Tense. 1. They must be more careful. (Past simple) 2. You may not talk loudly at the meeting. (Past simple) 3. People from poor countries can't go elsewhere looking for higher incomes (Future Simple) 4. The firm can select the output level maximizing its profit (Past Simple) 5. There are a lot of factors in agriculture that must be assumed as risks by the farmers (Future Simple)

Answer 1

1. They had to be more careful.

2. You might not talk loudly at the meeting.

3. People from poor countries won't be able to go elsewhere looking for higher incomes.

4. The firm could select the output level maximizing its profit.

5. There are a lot of factors in agriculture that will have to be assumed as risks by the farmers.

Answer 2

Modal Verbs in Past Simple and Future Simple Tense

1. They must be more careful. (Past simple) - The past simple form of "must" is "had to". - They had to be more careful. 2. You may not talk loudly at the meeting. (Past simple) - The past simple form of "may" is "might". - You might not talk loudly at the meeting. 3. People from poor countries can't go elsewhere looking for higher incomes. (Future Simple) - The future simple form of "can't" is "will not be able to". - People from poor countries will not be able to go elsewhere looking for higher incomes. 4. The firm can select the output level maximizing its profit. (Past Simple) - The past simple form of "can" is "could". - The firm could select the output level maximizing its profit. 5. There are a lot of factors in agriculture that must be assumed as risks by the farmers. (Future Simple) - The future simple form of "must" is "will have to". - There are a lot of factors in agriculture that will have to be assumed as risks by the farmers. I hope this helps! Let me know if you have any other questions.