明天交He was so happy that he could't say a word when he heard the news.(保持原句意思）He was ______ happy ________ say a word when he heard the news.
问题描述：
明天交
He was so happy that he could't say a word when he heard the news.(保持原句意思）
He was ______ happy ________ say a word when he heard the news.
答