The rivers will become dirtier and dirtier ______ we take action to protect them.
#56392
A
since
B
if
C
until
D
unless
推荐题目
________ we deal with our problems, we can easily become unhappy.
#55210
A
Until
B
If
C
Unless
D
Though
—Please say something about Zheng He. —Oh! He is the Ming dynasty explorer of ______ all the Chinese are proud.
#55667
A
who
B
whom
C
whose
D
that
---Why would some workers in Foxcon die __________ continue working in the factory? ---Psychologists say they are under too much pressure.
#58525
A
better than
B
by accident
C
instead of
D
rather than
The restaurant is nice and the food is not bad, _____________ I still prefer eating at home.
#58220
A
and
B
but
C
should
D
or
My grandpa is _________ weak ______ look after himself．He needs help．
#56165
A
so, that
B
very, to
C
so, to
D
too, to