人民网载文指出,现在中国经济进入起飞期,在这个过程中,货币会衍生出众多的金融产品,偏离其本质。关于货币的产生,下列说法中正确的是 ( )
-You look upset. -Yes, this is the first time I________ form home.
The police________ already_______ his house but haven’t found any evidence against him.
We should consider the students’ request________ the school library should provide more books on popular science.
He was heard________ three songs in the next room.
-Young man, come off the grass; we forbid________ on the grass here. -Sorry, I didn’t notice it.