Ответ:
1. It IS important.
2. The lesson IS over.
3. I AM afraid.
4. I HAVE a temperature.
5. He HAS a headache.
1. It WAS important.
2. The lesson WAS over.
3. I WAS afraid.
4. I HAD a temperature.
5. He HAD a headache.
1. It WILL BE important.
2. The lesson WILL BE over.
3. I WILL BE afraid.
4. I WILL HAVE a temperature.
5. He WILL HAVE a headache.