The lecture started. Right after that, I entered the lecture hall.

37/50

Entering the lecture hall, the lecture started.

After I entered the lecture hall, the lecture started.

No sooner had the lecture started than I entered the lecture hall.

Before the lecture started, I had entered the lecture hall.

Giải thích

Đáp án đúng là: C

Giải thích: No sooner + had + S + Vp2 + than + ....: vừa mới...thì...

Dịch: Bài giảng vừa bắt đầu thì tôi bước vào giảng đường.