from heart trouble for years.from heart trouble for years,Professsor Wang has to take some medicine with him wherever he goes.A：Suffered B：Suffering C：Having suffered D：Being suffered

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______fromhearttroubleforyears.______fromhearttroubleforyears,ProfesssorWanghastotakesomemedicinewit

______from heart trouble for years.______from heart trouble for years,Professsor Wang has to take some medicine with him wherever he goes.A：Suffered B：Suffering C：Having suffered D：Being suffered
______from heart trouble for years.
______from heart trouble for years,Professsor Wang has to take some medicine with him wherever he goes.
A：Suffered
B：Suffering
C：Having suffered
D：Being suffered

b
1 发出承受这个动作的人士 wang教授
2 伴随状语ing，表示一直……怎样怎样

C
suffer from本来就表示遭受
所以不该用被动语态吧，排除d

C having done 分词完成时表示动作持续，后面有for years

______from heart trouble for years.______from heart trouble for years,Professsor Wang has to take some medicine with him wherever he goes.A：Suffered B：Suffering C：Having suffered D：Being suffered ______from heart trouble for years,Professsor Wang has to take some medicine with him wherever he：Suffered B：Suffering C：Having suffered D：Being suffered Heart. Heart Heart heart heart HEART heart heart heart heart heart heart heart heart heart heart