Complete the sentences choosing present progressive or present perfect progressive. 1 sally is in the classroom. she (air) the room. 2 chris is tired. he ( clean ) school yard all day. 3 jenny and sarah are happy. they (sunbathe) since morning. 4 dad is busy. he (build) a nestling box. 5 our friends can't come with us for a walk. they ( interesting film.
2. has been cleaned
3. have been sunbathed
4. is building
5. are watching