Initially I was opposed to the idea, but after I had seen the research, I that the project was a good one.
Initially I was opposed to the idea, but after I had seen the research, I ___ that the project was a good one.
A. must have agreed
B. would have agreed
C. ought to agree
D. had to agree

Đáp án D

Ban đầu tôi phản đối ý tưởng đó, nhưng sau khi xem bản nghiên cứu, tôi phải đồng ý rằng đề án đó là một đề án rất tốt.