____,george would have been a rich man
A.If he were to enter business
B.if he was to enter business
C.was he to enter business
D.Had he entered business.
选D
这是一句省略了if的虚拟语气
省略了之后句子要倒装,助动词放第一个
ABC的时态都不正确
有不会的可以再问我.