问题
选择题
from heart attack for years, Professor Wang has to take some medicine with him wherever he goes. [ ]
A. Suffered
B. Suffering
C. Having suffered
D. Being suffered
答案
答案：C
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from heart attack for years, Professor Wang has to take some medicine with him wherever he goes. [ ]
A. Suffered
B. Suffering
C. Having suffered
D. Being suffered
答案：C