当你下午在街上遇到朋友时,可以这样和他打招呼: ( )
A:Good morning!
B:I'm fine.
C:How are you?
2015年10月,十八届五中全会决定全面实施一对夫妻可生育两个孩子政策,我国生育政策进行了重大完善,这是因为( )
— Mike, what's your favourite hobby? — ____ (surf). It's exciting.