TV at that time?A. Did you watch B. Have you watchedC. Were you watchingD. Are you watchin

问题补充：

TV at that time?

A. Did you watch

B. Have you watched

C. Were you watching

D. Are you watching

答案：

A. Did you watch

B. Have you watched

(答案→)C. Were you watching

D. Are you watching

解析：句意：那时你在看电视吗？结合语境可知本句描述的是过去某时正在进行的动作，故用过去进行时态，故选C。