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Open the brackets Past perfect simple or Past perfect continuous.
1. They ....... (drive) for two hours before they finally reached their destination.
2. Emily .......... (write) five letters by lunchtime.
3. The doctor told John to stay in bed until he ......... (fully/recover)
4. He ............ (iron) all morning when his wife arrived.
5. Peter ........... (already/learn)
to read and write before he started school.
6. The baby ........... (cry) for
half an hour before it finally fell asleep.
7. The children .......... (wait) for
an hour when the school bus arrived.
8. The burglar ......... (get away) by the time the police arrived.
9. She .......... (dig) in the garden
for three hours when she stopped for a break.
10. By the time he was eighteen he ............ (become) a professional athlete.
11. How long ........... (they/dance) in competitions when they retired?​