1. (2024高一上·百色期末) img src="//tikupic.21cnjy.com/2024/07/07/60/0b/600b489868a29c8157f3a8d5a7192496.png" width="2px" height="9px"> What will they do on Christmas  (前夕)? (根据汉语提示单词拼写)