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_______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately. 
#79673
A
Even if
B
As far as
C
If only
D
So long as
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We wouldn’t go to Philippine for our vacation         we could afford it．
#32424
A
as if
B
so that
C
now that
D
even if
The reason _______ he was late was ________he hardly knew the way to the meeting place.
#33976
A
what; because
B
for which; that
C
that; because of
D
why; because of
5. “Was his father very strict with him when he was at school?” “Yes. He had never praised him _______ he became one of the top students in his grade.”
#80146
A
after
B
unless
C
until
D
when
He must be from America, ____ can be judged from his accent.
#33269
A
that
B
which
C
it
D
where
It seems ________ our team is going to win.
#30818
A
even though
B
when
C
if
D
as if