The problem ______ it is right or wrong has not yet been decided.a.whether b.that
问题描述：
The problem ______ it is right or wrong has not yet been decided.a.whether b.that
如题,名词性从句,选哪个?为什么?
答
A.whether
whether...or ...是固定用法,且句子含有判断意味,不宜用that