问题补充:
The dinner party was a success, but we thought it was a pity not you.
A. invite
B. to invite
C. inviting
D. to have invited
答案:
A. invite
B. to invite
C. inviting
(答案→)D. to have invited
解析:考查非谓语动词。It is/was a pity not to do sth是固定句型,it是形式主语,真正主语是后面的不定式,排除A、C;根据句意可知,晚餐聚会已经结束,邀请发生在晚餐之前,相当于“过去的过去”,应该使用不定式的完成时,排除B,故选D。