____ regular exercise is very important, it’s never a good idea to exercise too close to bedtime.
#30024
A
It
B
As
C
Although
D
Unless
推荐题目
________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 traditional view is ________ we sleep because our brain is “programmed” to make us do so.
#29975
A
when
B
why
C
whether
D
that
What impressed the visitors deeply was ______ the workers made with their hands.
#31291
A
what
B
that
C
how
D
which
_______ I admit she has some shortcomings, I do think she is an attractive girl.
#31165
A
When
B
While
C
As
D
Since
–It’s a long time ___ I last saw you. --Yes, and it will be two months ______ we can meet again.
#32862
A
before; since
B
when; before
C
since; when
D
since ; before