At one time paper was in short supply and was used mainly for important documents, but more recently
at one time: xưa kia, trong quá khứ
At one time paper was in short supply and was used mainly for important documents
Xuất bản: 21/08/2020 - Cập nhật: 07/09/2020 - Tác giả: Chu Huyền
Đáp án và lời giải
đáp án đúng: B
