悬赏最高100! Is this the reason （he explained）at the meeting for his carelessness in his work?问题1括号内为什么用his explained?那如果换成why he explained为什么不行?问题2定语从句中why后面是必须要接一件事情吗?例：Is this the reason why he was being careless in his work?问题3is this reason （what he explained）at the meeting for his carelessness in his work?句子中把reason前面的the给去掉了,为什么括号中要加what?
问题描述：
悬赏最高100! Is this the reason （he explained）at the meeting for his carelessness in his work?
问题1括号内为什么用his explained?那如果换成why he explained为什么不行?
问题2定语从句中why后面是必须要接一件事情吗?例：Is this the reason why he was being careless in his work?
问题3is this reason （what he explained）at the meeting for his carelessness in his work?句子中把reason前面的the给去掉了,为什么括号中要加what?
答