Swimming is ____ in summer A.a great fun B.great fun C.great funs D.great a fun 选哪个?
问题描述：
Swimming is ____ in summer A.a great fun B.great fun C.great funs D.great a fun 选哪个?
答
B
答
选B
答
Swimming is _B___ in summer
A.a great fun B.great fun C.great funs D.great a fun