Ex.3
1. You have already had dinner at 2 o’clock- present perfect
2. You had dinner at 2 o’clock yesterday - past simple
3. You will have dinner at 2 o’clock tomorrow - future simple
Ex.4
He went to the Hermitage last week.
1. When did he go to the Hermitage?
2. Where did he go last week?
3. Who did he go to the Hermitage with?
4. When was the last time he went to the Hermitage?
5. Why did he go to the Hermitage last week?