D.having.

after 后面要用动名词 V-ing形式,此时after是介词；
after sb do/did的情况有的,但这种情况after后就是一个句子了.例如：I found your coat after you had left the house. 此时after是连词i think it's very boring.so I __itA.like B.not like C.dislike D.doesn't like这个呢。C 我认为这个很无聊 所以我不喜欢谢谢。