__go fishing after we finish our homework?good idea.a.why not b.why not to c.why not youd.why not we
问题描述：
__go fishing after we finish our homework?good idea.a.why not b.why not to c.why not you
d.why not we
答
选择a~句型是：Why not do sth~用于建议的语句~
若满意~望采纳~
答
why not doing sth / to do sth
所以选 B
如果是C或D，应该说why don't we/you
答
why not = why don't you
所以,后面加动词原形.a.why not
答
B