问题
选择题
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
答案
答案：D
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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
答案：D