.alone in the large house the little boy had to learn to survive by himself.A. To leaveB.

问题补充：

.alone in the large house, the little boy had to learn to survive by himself.

A. To leave

B. Leaving

C. Left

D. Being left

答案：

A. To leave

B. Leaving

C. Left

(答案→)D. Being left

解析：考查非谓语动词。句意：被独自一人留在这所大房子里面，这个小男孩不得不学会靠自己生活。现在分词表示正在进行的伴随性动作，和句子主语是主谓关系。结合语境可知小男孩是被遗留的对象，故用被动语态的现在分词，选D。