警察叫我在斑马线处过马路
A policeman ordered me to cross the road at the zebra stripes.
注意,警察是泛指,应该用 a policeman ,police是集合名词.另外,警察让行人走斑马线,是一种指挥、命令,order比较贴切.
他把兔子带回家了
He has taken the rabbit home.
他们转过身,发现了一些重要的东西
They turned round and found something important.