It is difficult for us to learn a lesson in life _____we’ve actually had that lesson.
#79988
A
until
B
after
C
since
D
when
推荐题目
She thought I was talking about her daughter，________，in fact，I was talking about my daughter.
#32077
A
whom
B
where
C
which
D
while
The sales of houses in our city fell by 40 percent last month, 48 percent __________ we don’t count low-price houses provided for poor residents.
#31080
A
as
B
unless
C
if
D
before
Feathers fall to the ground slowly,________ stones fall much faster.
#80177
A
but
B
however
C
while
D
yet
In the US they focus on creative thinking skills, _____ in China they only focus on theory．
#32741
A
since
B
when
C
while
D
now that
－Are you sure you have to? It’s been so late. Make it another time?－I don’t know ________ I can do it if not now.
#31948
A
how
B
what
C
when
D
that