-- Mum, Mary bought a pet dog yesterday. Could you please buy __________ for me? -- Sure. But y...

Question

-- Mum, Mary bought a pet dog yesterday. Could you please buy __________ for me? -- Sure. But you must look after it yourself. A．that B．this C．it D．one

Answer 1

D

试题分析：本题题干的意思是“你能给我买一只吗？”此处的代词应该表示泛指“一个”的意思。而that、this和it所在的对象都是一定的。故只能用one来表示泛指“一个”。所以本题选D。 点评：本题重在考查one作代词的用法。One一般用来代替前面已经出现过的名词单数，表示“一个…”；代替名词复数时，用ones来代替。