．The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
#34793
A
what
B
which
C
that
D
though
推荐题目
_______ all of them are strong candidates, only one will be chosen for the post.
#31381
A
Since
B
If
C
As
D
While
（2014届江西省重点中学盟校高三第二次联考英语试卷）27. She cared more about her students than her own health. That’s why two years passed _____ she was treated for breast cancer.
#30018
A
since
B
before
C
after
D
until
Steve was busy clearing the cups and dishes from the table ________ others were playing.
#30272
A
until
B
if
C
since
D
while
We Chinese eat with chopsticks ______ most westerners eat with knives and forks.
#31235
A
for
B
as
C
while
D
when