根据句意及汉语提示,写出各单词的正确形式,每空填一词。
What ____ (尺寸)of shoes does your father wear?
What a____ (浪费) to order so much food for us two!
I like the nights with thousands of____ (星星)in the sky.
It's not dark in the room. Please don't turn on the light too____(早)
下面的实例中,能构成群落的是( )
由于地球公转速度不均(近日点快,远日点慢)造成的现象是( )①太阳直射点的回归运动 ②北半球的夏半年较冬半年长③昼夜长短的季节变化 ④北极点极昼天数比南极点极昼天数多几天