— The floor is too dirty. — I know. It _
题型:选择题
问题:
— The floor is too dirty.
— I know. It _______ for weeks.
A.hasn’t cleaned
B.didn’t clean
C.hasn’t been cleaned
D.wasn’t cleaned
— The floor is too dirty.
— I know. It _______ for weeks.
A.hasn’t cleaned
B.didn’t clean
C.hasn’t been cleaned
D.wasn’t cleaned