-- I’m so sorry for breaking the plate, Mom. -- It doesn’t matter._________ careful next time.
#93720
A
Being
B
Do be
C
Do
D
To be
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It was a serious mistake, ______ caused by carelessness. 
#93814
A
which I think was
B
which I think it was
C
I think which was
D
that I think it was
John asked Tom ____ give him a lift to the office. 
#93583
A
if he could
B
could you
C
if could he
D
if could