C．shouted D．wandered

　　解析：选B　根据下文可知，她们在作者家门口停留。

　　16．A.brought B．wished

　　C．threw D．expected

　　解析：选A　她们甚至为作者带来了一束花。

　　17．A.take in B．take up

　　C．give in D．give up

　　解析：选D　根据语境可知，不要放弃对别人的善意，不经意的善意对别人会产生很大的影响。

　　18．A.refers B．means

　　C．relates D．contributes

　　解析：选B　你可能永远不会知道这种善意对别人意味着什么。

　　19．A.kind B．light

　　C．hard D．warm

　　解析：选C　文章告诉我们，这对母女开始很固执，铁石心肠，后来在作者的感化下，态度发生了变化。hard hearted"铁石心肠的"。

　　20．A.sorrow B．hope

　　C．imagination D．kindness

　　解析：选D　此处表示用善意之举改变别人，故用kindness。

　　Ⅱ.语法填空

　　Ajay：Last week, I signed up for an archaeology class next semester. And the professor is well known __1__ protecting cultural monuments around the world.

　　Peter：What exactly is that subject about? What does the professor do?

　　Ajay：It studies people and cultures existing in history __2__ even before recorded history. As far as I know, in the past 20 years the professor __3__ (spend) quite a large amount of her time trying to prevent historical monuments from __4__ (destroy)．

　　Peter：I cannot imagine a country __5__ should want to destroy a part of its own culture. Is there really a lot of destruction of cultural monuments all over the world?

　　Ajay：__6__ (fortunate), there is. My professor also helps restore damaged monuments and her work is considered to be of great __7__ (significant)．

　　Peter：That would be __8__ really cool job. I'd like to try doing that.

Ajay：I'm so glad you said that! As a matter of fact, my professor has asked me __9__ (find)