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 ) __________the school yard all day.3 Jenny and Sarah a...

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 ) __________the 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 (watch)_________an interesting film.