问题补充：
A beach house caught fire last night, seven students living in it.
A. to kill
B. killing
C. having killed
D. killed
答案：
A. to kill
(答案→)B. killing
C. having killed
D. killed
解析：：不定式和现分均可用作结果状语，不定式偏重于表示出乎意料的结果，特别是前面有only时。如：He lifted a rock only to drop it on his own feet.他搬起石头砸了自己的脚。
Her father left home, never to be heard from.她爸爸离开了家，从此杳无音信。
【标签】现在分词作结果状语
