Question

--- What were you doing this time yesterday?

　　--- I ______ on the grass and drawing a picture.

　　A. sit     B. sat     C. am sitting     D. was sitting

 

Answer 1

【答案】

D

【解析】本题是对动词时态的考察，问句和答句时态上要统一，问句是过去进行时，对于过去的某一时间的动作提问，所以答句使用过去进行时。