C．unbelievable D．unselfish

　　解析：选D　由小女孩的事迹可知，小女孩的爱是无私的。unselfish意为"无私的"，符合语境。

　　14．A.earn B．raise

　　C．protect D．steal

　　解析：选B　由下文可知，这位老师决定募集善款来修建学校。

　　15．A.learned from B．heard from

　　C．learned of D．listened to

　　解析：选C　句意：一家报社听说了这件事后，将其发表。learn from意为"从......学到......"；hear from意为"收到某人的来信"；listen to意为"听......"。

　　16．A.offered B．delivered

　　C．provided D．supplied

　　解析：选A　句意：一个商人读了这个故事以后，主动提供了一块价值数千美金的土地。offer sb.sth.意为"主动为某人提供某物"。

　　17．A.told B．paid

　　C．asked D．said

　　解析：选A　状语从句中省略了he was, told在此表示被动，意为"被告知"。

　　18．A.furnishes B．houses

　　C．equips D．fills

　　解析：选B　house在此用作动词，意为"提供住处"。

　　19．A.whose B．who

　　C．which D．of which

　　解析：选A　先行词为the little girl, 57 cents属于小女孩所有，因此选whose。

　　20．A.changeable B．probable

　　C．valuable D．remarkable

　　解析：选D　小女孩的57美分建造了这所非凡的建筑。remarkable意为"非凡的"，符合语境。

　　Ⅱ.语法填空

　　My doorbell rings at 11 am. On the step, I find an elderly Chinese lady holding the hand of a little boy. In her other hand __1__ (be) a paper bag. She is the little boy's grandmother, and her daughter, Nicole, bought __2__ house next door last October. Nicole has __3__ (obvious) told her mother that I am having a heart operation shortly, and the result is that her mother has decided __4__ (supply) me with meals.

I know what is inside the paper bag - a bottle of hot soup and a __5__ (contain) with a meal of rice, vegetables and meat. It's become a daily occurrence.