—I didn’t see you at the beginning of the party last night.
—I________on nay biology report at that time.
A.worked |
B.work |
C.was working |
D.am working |
—I didn’t see you at the beginning of the party last night.
—I________on nay biology report at that time.
A.worked |
B.work |
C.was working |
D.am working |
试题篮
()