Generally speaking children living in a city can not ox cow.A. tell an; from aB. tell;

问题补充：

Generally speaking, children living in a city can not ox cow.

A. tell an; from a

B. tell; from

C. tell a; from a

D. tell; from a

答案：

(答案→)A. tell an; from a

B. tell; from

C. tell a; from a

D. tell; from a

解析：考查动词及冠词。Ox和cow都是泛指，故分别用冠词an和a。tell … from …区分。句意：一般说来，生活在城市的孩子不能区分公牛和母牛。