(2012·四川)Scientists study ________ human brains work to make computers.
#30462
A
when
B
how
C
that
D
whether
推荐题目
— How about camping this weekend , just for a change?— OK, __________ you want.
#31766
A
whichever
B
whatever.
C
whoever
D
however
He made a mistake, but he corrected the situation __________ it got worse.
#31740
A
until
B
when
C
before
D
as
In your class, you should allow students to voice their opinions, they are different from your own.
#31755
A
until
B
unless
C
even if
D
as though
________you never plan to visit the polar bears in the North Pole or the penguins in the South Pole，now it is the proper time to start thinking about that.
#30102
A
Until
B
Unless
C
As long as
D
Even if
The queen will visit the town in May, _____she will open the new hospital.
#79963
A
when
B
then
C
while
D
but