___ great fun it is to go boating in such fine weather!A\ Wath B\ How C\ Wath a D\ How a

问题描述:

___ great fun it is to go boating in such fine weather!A\ Wath B\ How C\ Wath a D\ How a

A\ What

great fun
显然名词做主语.
What great fun it is to fly a kite here!
在这里放风筝真有趣啊!