10/ What you _______ a few minutes ago while your sister _______ the dishes?
A. did...do-washed B. did...do-was washing
C. were...doing-washed D. were...doing-was washing
VII/ Find the one mistake (A, B, C or D) in these sentences and then correct them:
Bạn đang xem 10/ - SACH BT ANH 10 CO DAP AN
