The rivers will become dirtier and dirtier _______ we take action to protect them.
#55533
A
since
B
if
C
until
D
Unless
推荐题目
— ?—Because it’s really beautiful.
#55473
A
Where is the picture?
B
Do you like the picture?
C
Why do you like the picture?
D
What kind of picture do you like.
The story was written in______ easy English_____ even the seven-year-old child could understand it.
#56560
A
very, that
B
so, that
C
too, to
D
such, that
I was _________ tired _________ I fell asleep as soon as I lay down.
#57434
A
too; to
B
so; that
C
such; that
D
enough; that