Question

【题目】—Has your son ever had ____ toothache? ( )

—No, never.

A.some

B.an

C.a

D.the

Answer 1

【答案】C

【解析】

句意：—你儿子牙痛过吗？—不，从不。have a toothache牙痛，固定搭配，故选C。