根据句意和首字母或汉语提示，将单词的正确形式写在题中相应的横线上。
(1)I watched T V all the day ,so I am b
(2)You'd better to keep your v down when talking in public.
(3)Mary is so smart that she can answer these questions (快速地) .
(4)Both of my best friends were born in (十二月) .
(5)The robots help us to do the (家务) in the future.
