2 Put the verbs in brackets into the past perfect or the 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? 31​