问题
选择题
– You ought to see a doctor about that cough.
-- I guess I should. I _____ it off for days.
A．put
B．was putting
C．have been putting
D．am putting
答案
答案：C
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– You ought to see a doctor about that cough.
-- I guess I should. I _____ it off for days.
A．put
B．was putting
C．have been putting
D．am putting
答案：C