--- Did you and your friends ride to the mountain last Sunday?
--- Yes. we had !
A. How good time
B. What a good time
C. What good time
D. How fun
网友回答
A. How good time
(答案→)B. What a good time
C. What good time
D. How fun
解析：本身have a good time 表示玩的愉快的意思，本题考查的是what 引导的感叹句，其结构为what a adj 可数名词单数，+主谓！，故选B