问题补充:
Climbing with our best friend Lucy was so that we always invite her to join us .
A. interested
B. interesting
C. bored
D. boring
答案:
A. interested
(答案→)B. interesting
C. bored
D. boring
解析:句意:和我最好的朋友露西一起爬太有趣了,我们总是邀请她加入我们。根据结果状语从句we always invite her to join us可知此处该用形容词“有趣的”,这儿的有趣是在描述活动爬,所以用ing形式的形容词interesting。故选B。