Bill won’t make any progress ______ he studies harder than before .
#57126
A
if
B
when
C
because
D
unless
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You won’t feel happy at school_______ you get on well with your classmates.
#55225
A
though
B
when
C
unless
D
because
–Do you offer any discount on the notebooks? –Sorry, sir. There isn’t a discount you pay more than 100 yuan.
#55450
A
although
B
until
C
unless
D
as
---How was your climb up Mount Tai?---I didn’t believe I could do it I got to the top．
#55282
A
until
B
unless
C
after
D
when