the meeting himself gave them a great deal of encouragement.
A. The president will attend
B. The president to attend
C. The president attended
D. The president’s attending
网友回答
A. The president will attend
B. The president to attend
C. The president attended
(答案→)D. The president’s attending
解析：考查非谓语动词。根据句子判定缺主语，故用动名词短语作主语，故选D。