问题补充:
The little boy is lucky enough to have escaped to death in the big fire.
A. burning
B. to be burned
C. being burned
D. to have been burned
答案:
A. burning
B. to be burned
(答案→)C. being burned
D. to have been burned
解析:escape后跟动名词作宾语;由于主语the little boy是burn动作的承受者,所以要用动名词的被动式。