Jack is a great talker. It’s high time that he something instead of just talking.
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：考查虚拟语气：It’s time that从句中用should do或动词过去时，表示虚拟语气，意思是：该做…了。Time前面也可以加形容词high，about。这题填过去时did，句意：杰克是个空谈家，这是做些事而不是空谈的时候了。选D。