--Where did you our English teacher?It was in the supermarket I bought moon cakes.A.

问题补充：

--Where did you our English teacher?

--It was in the supermarket I bought moon cakes.

A. come to, where

B. come across, that

C. come across, where

D. come to, that

答案：

A. come to, where

B. come across, that

(答案→)C. come across, where

D. come to, that

解析：考察短语辨析和定语从句。Come to谈到，涉及；come across遇见。第一空应该是遇见我们的英语老师。第二空是定语从句，定语从句的成分很完整，所以使用关系副词，supermarket又是表示地点的名词，所以使用where.故C正确。