题目
题干：从下列各句后的四个选项(A、B、C、D)中选出一个能填入句中空白处的最佳选项：He would have given you more help, if he ___ so busy.A. not have beenB. not had beenC. have not beenD. had not been
题干：从下列各句后的四个选项(A、B、C、D)中选出一个能填入句中空白处的最佳选项：He would have given you more help, if he ___ so busy.
A. not have been
B. not had been
C. have not been
D. had not been
题目解答
答案
D. had not been