Bộ 20 đề thi Tiếng Anh vào 10 có đáp án cực hay (Đề 13)

We started to write to each other three years ago.

36/40

We started to write to each other three years ago.

We used to write to each other for three years.

We have written to each other for three years.

We wrote to each other since three years.

We used to write to each other in three years.

Giải thích

Đáp án B