Lessons can be learned to face the future, ________ history cannot be changed.
#30007
A
though
B
as
C
since
D
unless
推荐题目
John waited at the bus-stop for nearly half an hour _____ the bus finally arrived .
#80108
A
when
B
as
C
before
D
while
________ you didn't know the rules won't be an excuse for your failure to report.
#31116
A
That
B
Where
C
What
D
Why
The relatives of the passengers in the missing Flight MH370 cann’t hide their feelings, _____ they can make sure that the plane will make a safe landing on the airport.
#30133
A
except when
B
except
C
except that
D
except where
Nobody believed a 92-year-old man could run a marathon_______he passed the finishing line. People of all ages can challenge themselves.
#30855
A
if
B
since
C
until
D
unless
I will keep on trying, ______ I might fail a thousand times.
#31698
A
while
B
as if
C
even if
D
otherwise