He told us whether a picnic was still under discussion A. to haveB. havingC. haveD. had

问题补充：

He told us whether a picnic was still under discussion

A. to have

B. having

C. have

D. had

答案：

(答案→)A. to have

B. having

C. have

D. had

解析：考查非谓语动词。句意：他告诉我们是否去野餐还在讨论之中。不定式表示具体的将要发生的动作，故选A。