【题目】The only problem was ______ we kept getting lost! But people in Tianjin were very friendly and helpful.
A.thatB.whyC.whetherD.what
在线课程【答案】A
【解析】
考查连接接词辨析。句意：唯一的问题是我们总是迷路！但是天津人非常友好，乐于助人。A. that名词性从句连接词；B. why为什么；C. whether是否；D. what什么。根据系动词was可知此处是that引导的表语从句，表语从句中that 只起连接作用，没有含义。故选A项。