Individual Challenge #2: PAST SIMPLE and PAST PERFECT
1. After they had opened (open) the window, it became (become) colder. 2. After we had seen (see) the movie, we went (go) to bed. 3. After he had left (leave), she started (start) to cry. 4. As soon as it had started (start) to rain, she took (take) her umbrella. 5. He played (play) cards after he had done (do) his homework. 6. Before she thanked (thank) me, she had taken (take) my present. 7. We saw (see) the robbers after they had left (leave) the bank. 8. He combed (comb) his hair after he had brushed (brush) his teeth. 9. Before we went (go) out, we had put (put) on our new shoes. 10. They went (go) swimming after it had stopped (stop) raining. 11. When we arrived (arrive) there, the ceremony had already started (already start). 12. Father had started (start) to wash the car after mother had gone (go) out. 13. After she had gotten (got) her new dress, she showed (show) it her parents. 14. He fell (fall) from the balcony after he had taken (take) away the railing. 15. He ate (eat) the cake after he had asked (ask).