3. Complete the sentences with the Past Continuous form of the verbs in brackets. 0) Alexander Graham Bell was experimenting (experiment) in his laboratory when he made the first successful telephone call. 1) ___ (Archimedes/have) a bath when he shouted ‘Eureka!’? 2) Mark Zuckerberg ___ (study) at Harvard University when he created Facebook. 3) ___ (Isaac Newton/sit) under an apple tree when he thought of his theory of gravity? 4) Marie Curie ___ (not live) in Poland when she won her first Nobel prize in 1903. 5) Art Fry created Post-it-notes when he ___ (work) for 3M. 6) George and Diane ___ (visit) a school when terrorists attacked the World Trade Center.

1. Was Archimedes having a bath when he shouted ‘Eureka!’?
2. Mark Zuckerberg was studying at Harvard University when he created Facebook.
3. Was Isaac Newton sitting under an apple tree when he thought of his theory of gravity?
4. Marie Curie wasn’t living in Poland when she won her first Nobel prize in 1903.
5. Art Fry created Post-it-notes when he was working for 3M.
6. George and Diane were visiting a school when terrorists attacked the World Trade Center.

Past Continuous обозначает действие, которое было в процессе в момент другого события в Past Simple.