it is to go for a picnic on such a day!前面填什么A.what a fun B.what fun C.how funny D.how a fun
问题描述：
it is to go for a picnic on such a day!前面填什么A.what a fun B.what fun C.how funny D.how a fun
为什么?
答
选B,what fun
fun是不可数名词,在正常语序中应表达为 It is fun to go for a picnic on such a day.
而这里what在句首并不是表示疑问句,而是感叹句.因为感叹的是fun,且是名词,所以用what放在句首.