His failure made him aware ___ he had made a great mistake in working out the plan.
#70120
A
of that
B
of
C
that
D
that of
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I’ll go to America to strengthen my English_______ it isn’t too expensive.
#72064
A
except
B
provided
C
assumed
D
unless
The wrong you've done to him is terrible,for__________ you should make an apology to him, I think.
#73497
A
this
B
which
C
what
D
that
Some old Chinese customs, many of you are too young to know, have already died out．
#69475
A
what
B
that
C
how
D
as
The other day my brother drove his car down the street at _____ I thought was a dangerous speed.
#68566
A
as
B
which
C
where
D
what