问题补充：
Only a human being.
A. when is it hungry a lion will attack
B. when it is hungry a lion will attack
C. when it is hungry will a lion attack
D. when is it hungry will a lion attack
答案：
(答案→)A. when is it hungry a lion will attack
B. when it is hungry a lion will attack
C. when it is hungry will a lion attack
D. when is it hungry will a lion attack
解析：可联系答.案.网客服索取。
