the news that shocked all of us came from mary. (作主语，指物)
the news that i heard came from mary. (作宾语，指物)
the boy that came here is henry's son. (作主语，指人)
the child that the woman looked after was suddenly missing. (作宾语，指人)
these houses which face south have no trees around them. (作主语，指物)
the film which i saw last night is about a young teacher. (作宾语，指物)
he was reading a book which he was very interested in. (作宾语，指物)
the girl who answered the phone was polite enough. (作主语，指人)
在复合句中，用作宾语的从句叫宾语从句。引导宾语从句的连接词有that, whether, if, who, whose, what, which, when, where, how, why等。如：
i suggested that he should study art.
nobody knows whether / if he likes this birthday present.
do you know who will come this afternoon?
i wonder in whose house the party will be held.
i believe what you said.
can you tell me which gate we have to go to?
i can't tell when he will arrive.
your coat looks very nice. could you tell me where you bought it?
can you please tell me how i can read the new word?
i don't know why he is leaving.
tina: oh, dear! i can't find the book 1. ________ i bought yesterday. do you know who took it away, eric?
eric: yeah! a girl 2. ________ was wearing a red dress took it away.
tina: did that girl come to get that book alone?
eric: no, she came here with a boy 3. ________ was wearing glasses.
tina: oh, no! i don't know them. who are they?
it was the early autumn of my first year at a high school. i didn't know 1. ________ (when / how) i could communicate with my new classmates in the right way so i had no friends. i was lonely. every time i heard my classmates talking and laughing, i felt my heart broken.
one day, i sat there in silence as usual. a boy entered the classroom. i didn’t know 2. ________ (whose / who) he was. he looked at me with a smile. it made me feel warm. that smile changed my life. day by day, i became closer to everyone in my class. and the boy with the smile became my best friend.
one day, i asked him 3. ________ (where / why) he smiled at me that day. what a pity! he didn't remember 4. ________ (if / what) he ever smiled at me that day! it doesn’t matter because all the dark days have gone. now i believe 5. ________ (that / if ) the world is what you think it is. if you think you are lonely, you might always be alone. so smile at the world and it will smile back.