Don’t treat the vase as if it _______ made of steel.
#86739
A
is
B
was
C
were
D
had been
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Had I known about this computer program, a huge amount of time and energy________.
#87046
A
would have been saved  
B
had been saved
C
will be saved
D
was saved
---    you disturb her with these annoying questions just when she was busy cooking dinner?---Sorry, I      that at that time.
#89328
A
Should, should have done
B
Shall; may have done
C
Must, should do
D
Must, should not have done