My brother is interested in...My brother is interested in____English or ____ English.答案是spoken;written.为什么?in不是介词吗?为什么不可以用speaking;writing?in不是介词吗？后面不是要加doing吗？为什么不可以用speak

my brother is [tall] My u_______ is my mother is brother. My brother is OK.=My brother is ___ ___. My father is your brother She is my brother , Nancy My brother is ( ) ( ) his clothes my brother is crazy( )football My brother is looking___his photos. what is my brother like? My brother is taking pictures That () Paul.()is my brother the baseball is ( )my brother A baseball is ( )my brother. my brother is wedding day This man is (my brother).对my brother部分提问 The boy is my brother.(就my brother 提问) The boy is my brother 对my brother提问 He is my brother.对my brother提问