．
for that
C
．
because
D
．
why
14
．
Be careful with those explosives _______ end up killing ourselves.
A
．
then we won’t
B
．
but we won’t
C
．
or we will
D
．
and we will
15
．
I don’t play basketball any more, _________ when I was a child.
A
．
but I used to
B
．
I used to
C
．
but I used to do
D
．
I used to do
16
．
Living here at the top of the mountain with no one else near, the old man must be very ____.
A
．
only
B
．
alone
C
．
lone
D
．
lonely
17
．
Her name was on the waiting list for an emergency liver transplant, but no organ would be ______ for a month or two.
A
．
reliable
B
