The city park will be cleaner ___________ people stop dropping litter here and there.
#56719
A
while
B
if
C
unless
D
before
推荐题目
Such things are not common for me, _________ they are unusual.
#55643
A
instead
B
but
C
so
D
as a result
My father feels ________ because he heard from ________ today.
#58571
A
happy；an old friend of he
B
happy；an old friend of his
C
happily；one of his old friends
D
happily；an old friend of him
The girl handed everything _____ she had picked up in the street to the police.
#57601
A
which
B
in which
C
that
D
all
_____ he was tired , ____ he didn’t stop working .
#57240
A
Although ; but
B
Though; /
C
But ; /
D
Though ; but