They last employed new staff back in January. (taken) => No new staff
Question: They last employed new staff back in January. (taken)
No new staff
Question: They last employed new staff back in January. (taken)
No new staff
Đáp án: No new staff has/ have been taken on since January.
Dịch: Lần gần đây nhất họ thuê nhân viên mới là vào tháng Giêng.