根据句意用适当的从属连词或关系代(副)词填空。
【小题1】--Dave, turn off the TV if no one is watching it.
--But it has been turned off already! The music is from the radio.
【小题2】--Why didn’t you go surfing last Sunday?
-- Because I had a bad headache.
【小题3】Don’t get off it until the bus stops. It’s dangerous.
【小题4】--Where is the ic book?
--I brought it to you when you were in the reading room yesterday.
【小题5】Jack, there is someone in the office Who would like to speak to you.
【小题6】--What kind of music do you like?
--I like music that／which I can sing along with.
【小题7】The old man wants to live in a house whose door is broken.
【小题8】The film which／that we saw the day before yesterday is very interesting.
【小题9】Do you know the student who／that was praised at the meeting?
【小题10】They work in a factory which／that makes radio parts.
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解析：
1. if 此题考的是if引导条件状语从句，本句意为：如果没人看电视就关了电视，故用if。
2. Because 由上文why可知用because因为作答,表示原因。
3. until 此题考查not…until直到…才的用法，not 前面一般要有be动词，助动词或是情态动词，故答案为until。
4. when 此题考查when引导时间状语从句，when前面过去时后面用过去进行时。
5. who此题考查定语从句，指先行词为someone指人，并在would like to speak to you中作主语，故用who。
6. that/which或是不填 此题考查定语从句，先行词为music为物，在I can sing along with music中作宾语，故用that/which,当然也可以不填。
7. whose 此题同样是考定语从句，指…的并定语，故用whose。
8. which/ that或不填 对定语从句的考查。先行词film为物，实际这句可变为we saw the filmthe day before yesterday 作宾语，故用that/which,当然也可以不填。
9. who/ that 对定语从句的考查，先行词指人the student，在后面中充当主语，故可用who/that。
10.which/ that 此定语从句先行词为factory,在后面的句中充当主语：The factory makes radios,故用which/that。