第3个回答 2021-09-27
It is why the United States has never defaulted on its obligations and never will. 这就是美国从未发生债务违约且永远不会违约的原因。 why 引导的是标语从句。
二、由连接代(副)词引导的表语从句
连接代词who, whom, whose, what, which, whoever, whatever, whichever;
连接副词where, when, how, why。
That was what she said this morning in her bedroom.那就是她今天早晨在卧室中说的。
that was why he did not come to your birthday party . 那就是为什么他没有来你的生日party