Climbing with our best friend Lucy was so that we always invite her to join us .A. interes

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。