Question

I ________ to Canada twice．It's so beautiful．

1. A.
   won't go
2. B.
   have gone
3. C.
   don't go
4. D.
   have been

Answer 1

D
have/has been to意为“曾经去过某地”，现在已经回来了，人不在那里了；have/has gone to意为“已经去了某地”，表示人还没有回来。根据题意“已经去过加拿大两次了”，可知应用have been to。