----- Nội dung ảnh ----- X. Fill in each blank with a correct preposition. 1. Elephant Race Festival is held __________ Dak Lak province. 2. At La Tomatina, people throw tomatoes __________ each other. 3. Halloween is celebrated __________ October 31st. 4. Thanksgiving originated __________ a harvest festival. 5. __________ Christmas Eve, we sit in front of the fire and read Christmas stories. 6. The custom of giving eggs __________ Easter celebrates new life. 7. We decorated our Christmas tree __________ red bows and colorful ornaments. 8. La Tomatina is held __________ the last Wednesday of August every year. 9. Hoi Mua Festival is held to thank the Rice God __________ the crop and to pray __________ better crops in the future. 10. __________ the morning, many people tried to climb __________ the pole to get the ham.