补全对话。(每空一词) Molly: Hey, Hector! What are you doing 1. _____ vacation? Hector: I'm visiting my cousins 2. _____ Canada. I'm leaving 3. _____ Friday. How 4. _____you, Susan? Susan: I'm 5. _____ to sports camp. Molly: Oh, cool! 6. _____ are you going? Susan: On the llth. Molly: 7. _____ great. Hector: How about you, Molly? What are you doing for 8. _____? Molly: 9. _____ going to the beach 10. _____ my family. We're leaving this weekend.