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
Some people waste a lot of food___________ others don’t have enough to eat.
#56217
A
however
B
when
C
as
D
while
Ben was busy taking a training class. ______we had to wait for himfor half an hour..
#57651
A
so
B
if
C
or
D
but
______ Ling Ling is tired, _______ she wants to have a rest.
#57084
A
Because, so
B
Why, because
C
/, so
D
So, because
—Since you’ve tried your best, I’d like to give you one more chance.—Thank you so much!
#55134
A
As soon as
B
Because
C
When
D
As long as