问题
选择题
－Why didn’t Tom give you one of his paintings?
－I didn’t want one，but he would have given me one if I______.
A．did
B．would
C．will
D．had
答案
答案：D
由题意可以得知，回答中用到了虚拟语气，是与过去的事实相反，补全句子应该是he would have given me one if I had wanted one.