-Ididn'tseeyouatthebeginningofthepartylastnight. -I 国语站 题库 1.21W 大中小设置文字大小 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 TAG标签:#