问题补充:
He couldn’t help .The news was so .
A. smiling, excited
B. to smile, exciting
C. smiling, exciting
D. smiled, excited
答案:
A. smiling, excited
B. to smile, exciting
(答案→)C. smiling, exciting
D. smiled, excited
解析:couldn’t help doing表示情不自禁的做某事,和事物连用用exciting,故本题选C。