People cut down too many trees, _____ the greenhouse effect becomes more and more serious.
#56516
A
so
B
because
C
although
D
if
推荐题目
she is only a twelve-year-old girl, she can speak four languages very well．
#56254
A
Because; so
B
Though, but
C
Though; /
D
If; but
We prefer ________at the party rather than______.
#58532
A
to sing; to dance
B
to sing; dancing
C
to sing; dance
D
sing; dance
you read it ,you can’t imagine how moving the story is.
#55193
A
Unless
B
Because
C
Although
D
As soon as
—Hurry up! The bus is coming. —Wait a minute. Don’t cross the street _______ the traffic lights are green.
#58477
A
until
B
after
C
while
D
since