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
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