类别1
类别2
丹顶鹤、青蛙、大熊猫、鲫鱼
蜜蜂、蚯蚓、蜗牛
A:水生还是陆生
B:身体内有无脊柱
C:体温是否恒定
D:是胎生还是卵生
The restaurant is nice and the food is not bad. I still prefer eating at home.
____
下列说法正确的是( )
We _____others' homework.
Of the three foreigners, one is from London, ____ are from the USA.