问题
选择题
--Jack's never worked hard at English, _______?
-- _______ , so he can't answer the question in English, I think.
A．is he; Yes, he is
B．is he; No, he isn't
C．has he; Yes, he has
D．has he; No, he hasn't
答案
答案：D
Jack’s此处为Jack has的缩写，因句中有never，故附加问句应用has；答句说明的是否定情况，故应用N0，he hasn’t。