Bài tập Hoàn thành câu có đáp án Phần 2

I thought the conference was going to be boring, but it __________ to be quite informative

117/200

I thought the conference was going to be boring, but it __________ to be quite informative.

turned out

turned on

turned off

turned up

Giải thích

Đáp án đúng là: A