IamreallygratefultoMr.Smith.Withouthishelp,I

问题详情：

 I am really grateful to Mr. Smith. Without his help, I _______ the entrance examination.

A. would not pass B. would not have passed  C. could not be able to pass D. could not pass

【回答】

B

知识点：虚拟语气与情态动词

题型：选择题