同位语从句一定要用that 吗答:在主从复合句中作同位语的从句称为同位语从句。同位语从句一般用that, whether,what, which, who, when, where, why, how 等词引导,常放在fact, news, idea, truth, hope, problem, information, wish,promise, answer, evidence, report, explanation, suggestion, conclusion等抽象名词后面,说明该...