根据首字母或汉语提示完成单词
They just have a ________ (空闲的) room for the guest.
Look, there is an ___________ (巨大的)animal on the top of the mountain.
There are so many birds flying above the r_________ of the houses.
The old man collect waste paper and bottles for r__________.
The workers are all ___________ (反对)the boss's idea strongly.