It        long before we        the result of the experiment.
#102004
A
will not be;will know
B
is;will know
C
will not be;know
D
is; know
推荐题目
 Reading can give students a chance to _______ their interests. 
#99905
A
explain
B
explode
C
explore
D
export
My brother _______ the army two years ago.He has ______ for two years.
#102414
A
joined in ; joined
B
joined ; been a soldier
C
joined in ; become a soldier
D
joined; joined in