______ him well, I would have invited hi
题型:选择题
问题:
______ him well, I would have invited him to my birthday party.
A.Had I known
B.Should I know
C.If I know
D.If I knew
______ him well, I would have invited him to my birthday party.
A.Had I known
B.Should I know
C.If I know
D.If I knew