I’m going to take him to some famous hutongs ____ he can learn more about China.

A. but

B. so that

C. although

D. when

B

句意：我要带他去一些著名的胡同，目的是关于中国他能了解更多。A. but但是；B. so that目的是；C. although尽管；D. when当---时候；根据I’m going to take him to some famous hutongs和 he can learn more about China.之间的关系，可知是表示目的；故选B