---YouseemtoknowJackverywell.---Yes.Webothusedtoworkat...

问题详情：

 ---You seem to know Jack very well.

---Yes. We both used to work at the airport ---that’s ______we met.

A. how                  B. why                  C. when              D. because

【回答】

A考查副词。上文提示了met的方式。

知识点：连词

题型：选择题