S1.What have researchers found out about the influence of parents and the school on children’s intelligence?
they are found only in places where they can live 10 with the least effort.
Americans eat________(两倍多的蛋白质) they actually need every day.
父母没有预料到孩子的问题这样难回答。
The selection of English teachers used to be mainly based on ________.
我们无法想象在那个遥远的星球上存在什么东西。