系动词填空Whenever living things e___ in groups,their society tend to be more complex and specialiWhenever living things e___ in groups，their society tend to be more complex and specialized.

系动词填空Whenever living things e___ in groups,their society tend to be more complex and specialiWhenever living things e___ in groups，their society tend to be more complex and specialized. Everyone living in that building （）（make）to leave their fingerprints that night 动词填空. He ’d rather （）（live）in the countryside than （）（make）a living in the city 动词填空. In the past ,there ____ (be)no people living on this small island 动词填空 填 was还是were 为什么 动词填空, 动词填空, 动词填空 动词填空, 动词填空 动词填空 动词填空! 动词填空, 动词填空 动词填空, 动词填空, 动词填空, 动词填空, 动词填空,