问题
Where is your grandpa? —He _________ Canada and __________ Toronto for a month.
A:has been to, has been in
B:has gone to, has been in
C:has been in, has been to
D:has gone to, has been to
B:has gone to, has been in
C:has been in, has been to
D:has gone to, has been to
正确答案是：
