Поставьте предложения в прошедшее и будущее время, введя соответственно обстоятельства времени. 1. It's easy to understand this text, isn't it? 2. It's interesting to listen to your stories. 3. Is it difficult for you to learn grammar rules? 4. It's dark in the room, isn't it? 5. It doesn't often snow here in winter. 6. It doesn't rain here very often at this time of year. 7. It's important for me to finish the work today.

1. It's easy to understand this text, isn't it? - It was easy to understand this text last lesson, wasn't it? - It will be easy to understand this text next lesson, won't it?

2. It's interesting to listen to your stories. - It was interesting to listen to your stories last night. - It will be interesting to listen to your stories next night.

3. Is it difficult for you to learn grammar rules? - Was it difficult for you to learn grammar rules yesterday? - Will it be difficult for you to learn grammar rules tomorrow?

4. It's dark in the room, isn't it? - It was dark in the room yesterday, wasn't it? - It will be dark in the room tomorrow, won't it?

5. It doesn't often snow here in winter. - It didn't often snow here last winter. - It will not often snow here next winter.

6. It doesn't rain here very often at this time of year. - It didn't rain here very often last year. - It will not rain here very often next year.

7. It's important for me to finish the work today. - It was important for me to finish the work two hours ago. - It will be important for me to finish the work in two hours.