第1个回答 2006-04-21
I often climb mountains with my friend.
B. Where, at
看在我第一个回答你第一个问题,选我吧本回答被提问者采纳
第2个回答 2006-04-21
I often climb mountains with my friend(friends)
B where ,at
具体的小地方用at,in用于城市,地区等等
第3个回答 2006-04-21
I often climb mountains with my friend(friends)
B,at小地方
in大范围
第4个回答 2006-04-21
I often climb mountains with my friends
B