1. 宾语从句可由连接代词who, whom, whose, what, which等引导，它们在宾语从句中可作主语、宾语、表语和定语等，因而不能省略。例如：[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ 0~p??w:dea}:8M=\P8FroG]

    Do you know who'll give us a talk？你知道谁给我们作报告吗？[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ cy D5osN!18uc^{s42FroG]

    Did you hear what I said? 你听见我的话了吗？[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ HK9G/ZlX(qJk:O{nFroG]

    Could you please tell us which gate we have to go to?请告诉我们得走哪个门好吗？[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ X&5tooRW1~a'=!|heFroG]

    2. 宾语从句可由连接副词how, where, when, why等引导，它们在宾语从句中作状语，不可省略。例如：[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/
h!I`"pHv"p"vOg!FroG]

    Tom's father asked him why he was doing that. 汤姆的父亲问他为什么那样做。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ FVAa87 ;)v~n
:oZAFroG]

    Can you tell me how I can get to the post office, please？请问到邮局怎么走？[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ Rq 8:(7Yy M;}J,&FroG]

    3. 可接连接代词或连接副词引导的宾语从句的动词有：see, say, tell, ask, answer, decide, know, find out, show, remember, choose 等。例如：[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ YzPVC=i$pZI/;ZL?FroG]

    We can't decide who should open it first． 我们不能决定谁应该先把它打开。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ jRn[,fL~~2c^KlFroG]