He tried his best to solve the problem, ______ difficult it was.
#33187
A
however
B
no matter
C
whatever
D
although
推荐题目
(2013·陕西高考)It remains to be seen ________ the newly formed committee's policy can be put into practice.
#30528
A
that
B
which
C
what
D
whether
---You don’t look quite yourself today. What’s the matter? ---Well, I’ve caught a cold. Nothing serious, ________.
#32859
A
although
B
though
C
indeed
D
instead
_________ many countries in Latin America have been trying to reduce gaps in income, America has allowed inequality to grow.
#32971
A
While
B
Since
C
If
D
Where
(2013·潍坊高考模拟)Air pollution is getting more and more serious，so we must take action________it is too late.
#30055
A
before
B
after
C
until
D
when