Children’s brains can’t develop properly_______ they lack protein.
#79950
A
when
B
since
C
because
D
unless
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There is hard evidence ________ George has something to do with the murder.
#30750
A
which
B
what
C
why
D
that
Mike had just finished his lunch and was about to take a break _____ an unexpected visitor came.
#33274
A
when
B
while
C
so
D
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—Look, the paint is starting to come off ____ the wall is damp.—Well, we'd better have the wall repainted some day.
#31419
A
when
B
where
C
if
D
once
It is known to all that ____ you exercise regularly, you won’t stay healthy.
#31547
A
because
B
unless
C
now that
D
in case