THE FLOOR HAS NOT/ HASN’T BEEN CLEANED FOR A LONG TIME / THE FLOOR...

3. - DAP AN HSG TINH TIENG ANH 9DOC
Lớp 9 Tiếng Anh DAP AN HSG TINH TIENG ANH 9DOC
3. The floor has not/ hasn’t been cleaned for a long time / The floor was last cleaned a longtime ago.