Choose the correct option.

1. We ... the project by Monday. 2. She ... when I ... home. 3. Mike ... for 2 hours by 8 a.m. 4. They ... football for 2 hours before it ... dark. 5. The students ... a composition for 2 hours before the bell ... . 6. They ... by 2020. 7. The opera ... when we ... to the theatre. 8. The Simpsons ... in the same house for twelve years before they ... to move. 9. It ... all night yesterday. 10. Tony ... the report by the deadline. 11. The secretary ... the letter before the manager ... . 12 She ... for 3 hours without stops before her voice ... .