问题补充：
I should have bought the beautiful vase, but I enough money.
A. didn’t have
B. don’t have
C. haven’t had
D. hadn’t had
答案：
(答案→)A. didn’t have
B. don’t have
C. haven’t had
D. hadn’t had
解析：考查时态.句意:我应该买了这个漂亮的花瓶,但是我没有足够的钱.前文是表示对过去的虚拟,下文描述的是过去的动作,故用过去时态,选A.
