A.isB.hasC.has beenD.had been
A.is
B.has
C.has been
D.had been
A.is
B.has
C.has been
D.had been
If things ______ different, I could have done it.
A、were
B、are
C、have been
D、had been
A.is
B.will have been
C.had been
D.may have been
He has been writing the essay the whole morning and he still ___ .
A、has
B、is
C、has been
D、does
A.A.___
B.B. will be
C.C. would have been
D.D. will have been
E.E. would be
__________ no bus, we had to walk home.
A、There being
B、Being
C、Having been
D、There was
If I ________ you, I would not do it.
A、am
B、was
C、have been
D、were
Without petroleum human life ____quite different today.
A、is
B、will be
C、would have been
D、would be
The house ______in bad repair since he moved out.
A、was
B、has been
C、had been
D、was being
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