The reason why I want to write this review is to warn future travelers on how to avoided by those salesmen.
A. being cheated
B. cheating
C. to cheat
D. to be cheated
网友回答
(答案→)A. being cheated
B. cheating
C. to cheat
D. to be cheated
解析：句意,我写这篇评论的目的就是提醒未来的旅行者怎样避免被那些商人欺骗。avoid doing sth.避免做某事，avoid不接不定式作宾语，故排除C和D，旅行者和欺骗是一种被动关系，旅行者被欺骗,应用被动语态，故选A。