You won’t feel happy at school_______ you get on well with your classmates.
#55225
A
though
B
when
C
unless
D
because
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I ______ believe it _______ I see it with my own eyes.
#58288
A
won’t; and
B
will; but
C
will; until
D
won’t; until
Bob is young, _______ he knows a lot. 
#58536
A
because
B
so
C
but
D
unless