___ a clear answer from his teacher,he decided to turn to an expert.A.Not having got B.Having not gotC.NOt getting D.Getting notC为什么不对,请解析,

问题描述:

___ a clear answer from his teacher,
he decided to turn to an expert.
A.Not having got B.Having not got
C.NOt getting D.Getting not
C为什么不对,请解析,

have got 过去完成式
表达完成的句式,get自己不行,是瞬间动词