heart disease for many years he had to take medicine everywhere.A. Having suffered fromB.

问题补充：

heart disease for many years,he had to take medicine everywhere.

A. Having suffered from

B. Have suffered from

C. To suffer from

D. Suffering

答案：

(答案→)A. Having suffered from

B. Have suffered from

C. To suffer from

D. Suffering

解析：本题考查suffer from的用法“患……病”，同时由句中时间状语知需用现在分词完成式。