根据要求改写句子。
（1） What’s wrong with him ? (改成同义句)
What’s_______ ______with him？
（2） We always have a big dinner on Christmas Day.(改一般疑问句)
_______ ________always_______ a big dinner on Christmas Day?
（3） He often buys a Christmas tree at Christmas.(对划线部分提问)
_________ _________ he often _________at Christmas?
（4） David wakes up early in the morning.(改否定句)
David_________ _________ _________ early in the morning.
（5） Mr. Turkey looks sad.(把Mr. Turkey换成they)
_________ _________sad.