Câu trả lời có ý nghĩa gần nhất với câu được cho: Much to my astonishment, I found his lecture on wildlife conservation extremely interesting.
A. Contrary to my expectations, his lecture on wildlife conservation was the most fascinating of all.
B. I was fascinated by what he said in his lecture on wildlife conservation though I hadn’t expected to be.
C. I hadn’t expected him to lecture on wildlife conservation, but he spoke well.
D. It was at his lecture on wildlife conservation that I realized I needed to study it.