-Ididn'tseeyouatthebeginningofthepartylastnight. -I
来源:国语帮 1.31W
问题详情:
- I didn't see you at the beginning of the party last night.
- I _____ on my biology report at that time.
A. worked B. work . C. was working D. am working
【回答】
C
知识点:动词时态
题型:选择题