3. She (not to know) anything about healthy living last year.
4. If the weather changes tomorrow, we (to go) to the country.
5. I usually (to do) different projects on Sundays.
6. While Dan (to watch) TV, his brother was doing homework.
7. They (not to finish) the test yet.
Объяснение:
2.was rung
3.didn't know
4.will go
5.do
6.was watching
7.haven't finished