小华买了一个MP5，开机后响起了动听的歌声，他说“是周杰伦在演唱”他是根据声音的　　不同来判断的；接着他又调节了音量按钮，这是为了改变声音的　　；小华听MP5播放的声音主要是通过　　（选填“气体”、“液体”或“固体”）传播的．

如果想要通过MP5来拨打电话，需要打开（） MP5微型冲锋枪是由（）研制的微型武器。 It’s _______ MP5 . It can be used to listen music and watch movies . It’s ________ useful invention . Whose MP5 is this, Tina?— It’s _____. My mother bought it for me last Sunday. What would you like for your birthday What aboutan MP5—-Oh, to tell the truth, I ______ have an I-Pad thanan MP5. What a nice MP5! Whose is it? — It’s . My father bought me last week. What would you like for your birthday ? What aboutan MP5?—-Oh, to tell the truth, I ______ have an I-Pad thanan MP5.A．prefer Susan, whatare the advantages of MP5 players—Mom, they aresmaller and lighter ______ they can be carried very easily. Excuse me, but can you help me to repair my MP5 ?—Why not _______ your knowledge of physics _______ practice?[ ] Do you like this MP5 player, Tom—Yes. It can play beautiful music, __________it is very expensive. 当一个人在一个拥挤的城区买了一辆汽车时，它就引起了（） Dad. Could I have an MP5 like this —Certainly. We can buy ______ one, but asgood as this one. －What wouldyou like for your birthday What about an MP5 －Oh, to tell the truth, I ______ have an I-Pad than anMP5. Allen, why do you like MP5 players so much—Mom, they are smaller and lighter they can be carried very easily. Allen, why do you like MP5 players so much – Mom, they are very smaller ______ I can carry them easily. Thank you for lending me your MP5 player. Can Ireturn it to you next Monday—–________. I’ve bought a new one. Mum, would you please buy me a MP5 player—If you can help do the dishes the whole vacation，you have one as a reward would you please buy me an MP5 player — If you can help do some housework the whole vacation, you ____have one as a reward 周末在家，小华需完成一个家庭任务：检查消防应急包。他不需要（） 小华不满14岁，小华父母以小华的名义购买了一套房屋。小华父母和小华之间的关系为（）