In LA Lingling lived with Smiths and got on well with the host family.A. a B. the C. /

问题补充：

In LA Lingling lived with Smiths and got on well with the host family.

A. a B. the C. /

答案：

解析：冠词。在英语中，：the+ 姓氏可以表示。。。夫妇，也可以表示。。。全家。