Unit 4 BROADEN YOUR MIND! - Lesson 2 Geographical Outlook

p. 209, ex. 2. b) Fill in the missing parts of the forms. / Заповніть пропущені частини форм.

1. have been known; haven't been known;

2. have been told; haven't been told;

3. has been discovered; hasn't been discovered;

4. has been found; hasn't been found.