根据句意，用括号中所给词的适当形式填空。(共5小题，每小题1分，满分5分)
In our life, whatever we do, we should never give up no matter how many ________ we have. (difficult)
How ___________ the room is ! There are so many people singing in it. (noise)
Chocolate is usually the ____________favorite food. (child)
Climb up to the ___________ floor , and you can enjoy a better view.(twelve).
Life is __________ and we should learn to enjoy our life. (color)