I _________ THAT A SIMILAR MESSAGE _________ TO MY OFFICE TWO DAYS...

15. - BAI KIEM TRA HOC KI I
Lớp 11 Tiếng Anh BAI KIEM TRA HOC KI I
15. I _________ that a similar message _________ to my office two days earlier.A. discovered - was sent B. had discovered - had been sentC. discovered - had been sent D. had discovered - was sentIV. Choose the part that is incorrect. (1 point)