问题
选择题
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
答案
答案：D
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”。