I know little about the accident because not much_________ about it up to now
#99272
A
has said
B
has been said
C
had said
D
had been said
推荐题目
Measures have been taken to prevent the accidents, but much _____ for more improvement.
#101771
A
remains to be done
B
is remained to do
C
remains to do
D
is remaining to be done
The house is dirty because it  since they moved out.
#100966
A
doesn’t clean
B
isn’t cleaned
C
hasn’t cleaned
D
hasn’t been cleaned