Ex.26 use the past perfect tense because i had heard it before. i didn’t listen to that play on the radio because i had heard it before. 1. why didn’t you see fred when you came to moscow? (leave) 2. why didn’t kate want to go to the cinema? (see the film) 3. why didn’t you tell him my new address? (forget) 4. what did jeff hear about kate’s examination? (pass) 5. why did fred come home so soon from his holiday? (spend all the money) 6. why couldn’t you get into your flat at once? (lose the key) 7. what did you learn about bob? ( get married) 8. what did she read in the newspaper about the expedition? (return) 9. what did he learn about helen from the letter he received? (be ill for a month)