三道英语选择题,要理由

三道英语选择题,要理由
1.--Was the park_____yesterday?
--Yes.It_____at nine in the morning.
A.opened;open
B.open;was open
C.open;opened
D.opened;opened
2.Once again Dick failed in the exam.He_____since he was quite a good student.
A.should not fail
B.should not have failed
C.needn't fail
D.needn't have failed
3.Do you _______what I told you?
A.accept B.receive C.get D.agree
1.C 2.B 3.A