问题补充:
It’s of Amy to make the birthday card than one.
A. much clever, to buy
B. cleverer, to buy
C. cleverer, buying
D. most clever, buy
答案:
A. much clever, to buy
(答案→)B. cleverer, to buy
C. cleverer, buying
D. most clever, buy
解析:做一个而不是买一个生日礼物,艾米真是太聪明了。结合语境可知本句表示两种行为的对比,故用形容词的比较级。Than是介词,后面接名词或者动名词作宾语,结合语境可知选B。