Đề kiểm tra giữa kì 2 Tiếng anh 12 năm 2023 có đáp án (Đề 15)

When I heard the telephone ring, I answered it immediately.

40/40

When I heard the telephone ring, I answered it immediately.

On hear the phone rang, I answered it immediately.

On hear the phone ring, I answered it immediately.

On hearing the phone ring, I answered it immediately.

On hearing rang, I answered the phone immediately.

Giải thích

Chọn C