If we _______ adequate preparations, the conference wouldn’t have been so successful.
#87422
A
haven’t made
B
wouldn’t make
C
didn’t make
D
hadn’t made
推荐题目
My little son _____ out alone at night. 
#88107
A
dares not go
B
dares not to go
C
dare not to go
D
doesn’t dare to go
We ____________ on the journey now but for this bad weather.
#86826
A
are
B
were
C
would be
D
will be
He﹍﹍the job well, but he    so careless.
#87662
A
had done; had been
B
could do; was
C
could have done; was
D
hadn’t done; had been