回答时请顺便说明一下 .

回答时请顺便说明一下 .1.we read anything ____ we could find on the education of minority groups.A that B which C about which D in which (为什么是选A而不是选D?)2.____ was discussed before,copper is seldom used in its pure form except in the electrical industry.A that B which C what D as (本句话的答案是D D选项中的AS是表示什么意思?)3.it was ____ every one went to the beach.A such hot a weather soB such hot weather thatC a hot enough weather so thatD so hot weather that(为什么是选B而不是D 形容词不是应该用SO修饰么?)