Помогите! Нужно употребить глаголы в Past Simple or Past Continuous/5. My dad ________ (be) shocked when he________…

Помогите! Нужно употребить глаголы в Past Simple or Past Continuous/5. My dad ________ (be) shocked when he________ (see) the bill.6. While they _____ (row) in the sea, Simon __________ (kiss) Barbara.7. When Alex _____ (hurt) his finger, he _______ (try) to drive a nail to the wall.8. While our teacher _______ (teach) , she______ (spill) some coffee on her books.9. When Clara _______ (crash) her car yesterday, she __________ (try) to park it.10. When Carl ________ (stain) his shirt with sauce, he ________.11. Jessica ________ (be) very surprised when Dave __________ (propose) to.12. While Alfred __________ (sing) , the people _______ (throw) tomatoes and bananas at him.13. It _______ (rain) heavily when they _______ (meet) after school yesterday.14. David _________ (fly) on a paper plane in his dream.15. While Charles ________ (water) the flowers, his wife _________ (plant) a tree.16. She _______ (feel) really happy when she _________ (receive) a letter from his son.