THE ROOM ________ ONCE A DAY.A. SHOULD CLEAN B. SHOULD BE CLEANED...

câu 17: - DE THI THU TNPT 2009 CO DAP AN
Tiếng Anh DE THI THU TNPT 2009 CO DAP AN
Câu 17: The room ________ once a day.A. should clean B. should be cleaned C. should have cleaned D. should be cleaning