— What do you think of your last ? —I had a very scary experience in the mountains. I won

问题补充：

— What do you think of your last ?

—I had a very scary experience in the mountains. I won’t go there again.

A. assistant

B. trip

C. study

D. Examination

答案：

A. assistant

(答案→)B. trip

C. study

D. Examination

解析：句意：你认为你的上一次旅行怎么样？我在大山里的经历很害怕。我再也不去那里了。根据后面描述的是在大山里的吓人经历，所以应该是上一次旅行的情况；Ａ助手，Ｃ学习Ｄ考试；故选Ｂ。