. by the thought that she was suffering a heart attack she screamed for help.A. Terrifyi

问题补充：

. by the thought that she was suffering a heart attack, she screamed for help.

A. Terrifying

B. Terrified

C. Being terrified

D. Having terrified

答案：

A. Terrifying

(答案→)B. Terrified

C. Being terrified

D. Having terrified

解析：可联系答.案.网客服索取。