Complete the sentences, using the past perfect tence.

When I arrived at the airport. I saw that (plane/take off)

When Peter's mum asked him about his homework he said that (he/do)

When they got to Ann's place (all the guests/leave)

By the time I got home from school (my grandma/cook dinner)

When the teacher came into the classroom (pupils / learn the results of the test)

When I arrived at the airport. I saw that plane had taken off (plane/take off)

When Peter's mum asked him about his homework he said that he had done it (he/do)

When they got to Ann's place all the guests had left (all the guests/leave)

By the time I got home from school my grandma had cooked dinner (my grandma/cook dinner)

When the teacher came into the classroom pupils had learnt the results of the test (pupils / learn the results of the test)