(2013·陕西师大附中模拟)If we had taken such effective measures much earlier, the river ________ so seriously now.
#86520
A
is not polluted
B
would not be polluted
C
had not been polluted
D
would not have been polluted
推荐题目
He _____ his parents that he has failed in the exam.
#90078
A
dares not tell
B
dares not telling
C
dare not tell
D
dares not to tell
The project ______ last month but unfortunately it had to be prolonged because of the financial problem.
#86466
A
needn’t have been finished
B
shouldn’t have finished
C
could have been finished
D
must have finished
There was plenty of time. She ______ .
#87490
A
mustn’t have hurried
B
couldn’t have hurried
C
must not hurry
D
needn’t have hurried.