How long did it take you____your homework?
问题描述:
How long did it take you____your homework?
答
to do
it takes sb. some time to do sth.
答
to finish
答
to do/finish /complete
sth take some time to do sth
答
to do
答
How long did it take you__finish__your homework?
答
It takes sb, sometime to do sth.
所以 次空格填 to