is Mike?---He is in the classroom.A. WhoB. HowC. whenD. Where

问题补充：

--- is Mike?

---He is in the classroom.

A. Who

B. How

C. when

D. Where

答案：

A. Who

B. How

C. when

(答案→)D. Where

解析：句意：----Mike在哪？----他在教室里。who谁，how怎么样，when什么时候，where在哪里。根据题意，选D。