为什么FAVOURITE 加 IS 后还要加个复数的名词MY FAVOURITE FOOD IS BANANANS.

为什么FAVOURITE 加 IS 后还要加个复数的名词MY FAVOURITE FOOD IS BANANANS. 为什么favourite后加动词ing.如：My favourite sport is swimming.不是只有I like the pants-------my favourite clothes.the pants后加be的什么形式(is/am/are) my favourite food is eggs .为什么egg加s了?为什么呢? favorite,后面加什么my favourite is. （ Drawing ）（绘画）is my favourite hobby.为什么要加ing? My favourite animal is dog.dog前可以加a吗,为什么 My favourite food is noodles 这里的noodle为什么加s playing football is my favourite s------.是sports?用加s吗,为什么? Her favourite sport is playing tennis为什么play加了ing这是病句吗 Her favourite sport is playing tennis的问题为什么play加了ing favourite后面应该加单数还是复数?RT,favourite解释为最喜欢的,个么应该是加单数咯?e.g.My favourite animal is rabbit.那我怎么还看到有这2种说法：My favourite animal is rabbits.(这不是主谓不一致了吗?还是 dollars后为什么加的是is Fishing is my favourite sport.I often fish for hours without catching anything.catch为什么加ing? Fish and chips are English people's favourite food.选择题、Fish and chips ___ English people's favourite food.A、are B、is C、be D、aren’t为什么,为什么不是are,两种食物还用is my favourite sport is basketball.还是my favourite sports is basketball.为什么用sport 或sports my favourite food is noodles ,为什么用is His favourite food is noodles 为什么用is 不用are