Jack is a great talker.It's high time that he something instead of just talking.(2012·辽宁)
A. will do
B. has done
C. do
D. did
网友回答
A. will do
B. has done
C. do
(答案→)D. did
解析：句意：Jack总爱夸夸其谈，他该做点事了，而不是仅仅空谈。这里是“It's (high/about) time that...”句型，从句谓语应用过去式或“should＋动词原形”。