复合句常用关联词语的作用答:Correct: We should do all that is useful to thepeople��� 当先行词是指物时,先行词为all, much, little, something, everything,anything, nothing, none, the one 时,不要用which,而要用that作关系代词。�Incorrect: The only thing which we could do was to ask thepolice for help�...