If penicillin _____________ available, many people ______________ from sickness.
#86943
A
weren’t , would have died
B
shouldn’t be, would die
C
hadn’t been, would have died
D
is, will die
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Without your help, I ____the exam last term. 
#89943
A
failed in
B
would have failed
C
wouldn’t pass
D
would fail
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
Though the ship sunk, all the people on her____ be resuced.
#88157
A
could
B
should
C
had to
D
were able to