根据下列句子的句意、汉语提示或英语解释,写出空白处所缺单词的正确形式;每空一词.
It's so hot here. Would you mind (打开) the windows for me?
We should be f to each other because we are brothers and sisters.
Throwing the litter h and there is a bad habit.
One t can′t make a forest, so we need teamwork.
Most Chinese think the color r is the symbol of good luck.
To live a low﹣carbon(低碳) life, we should t off the lights when we leave the room.