给下面带下划线的字选择正确的解释。
生日那天,我祝爷爷:福如东海,益寿延年。( )
— I'm sorry I ____ (leave) my exercise book at home.
— Don't forget to bring it to school tomorrow, please.
人们对“光的本性”的认识,经历了漫长的发展过程.下列符合物理学史实的是( )