—Why are most of us unable to study English well,Mr.Li?—You ______.But you ______ too little attention to it.
#89440
A
could;pay
B
will;attach
C
would;refer
D
can;devote
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They demanded that the law on gun ownership _______, otherwise more murders will arise.
#88029
A
will be changed
B
should change
C
is changed
D
be changed
--I'm told that John had another car accident this morning.--I believe not. He  _________so careless.
#90014
A
shouldn't have been
B
wouldn't have been
C
couldn't have been
D
mustn't have been
How I wish I _________ him the secret! I regret having done that now. 
#87001
A
hadn’t told
B
had told
C
would tell
D
didn’t tell