There was a time when watching TV really……….family entertainment.
A. were
B. was
C. had been
D. is
Công thức: S + Ved/ V2
watching TV (việc xem TV) =>chủ ngữ số ít
There was a time when watching TV really was family entertainment.
Tạm dịch: Đã từng có lúc khi việc xem TV thật sự là thú tiêu khiển chung của cả gia đình.