Smiths are going to Sunshine Town to visit their friends this evening.A. AB. AnC. TheD. /

问题补充：

Smiths are going to Sunshine Town to visit their friends this evening.

A. A

B. An

C. The

D. /

答案：

A. A

B. An

(答案→)C. The

D. /

解析：the +姓氏的复数形式表示一家人或夫妇二人，做主语时谓语动词要用复数。