cycling is a fantastic way to burn a few calories and save some money, there still exist risks．
#31065
A
Since
B
While
C
As
D
When
推荐题目
Tom was about to close the window ______ his attention was caught by a bird.
#31898
A
when
B
if
C
and
D
till
_____ the oil price is on the rise, lots of people go to work by BMW instead of driving cars.
#32797
A
So that
B
Even enough
C
As if
D
Now that
His friends ignored his advice, ______ they knew it to be helpful.
#31788
A
as if
B
since
C
even if
D
so that
I was on the highway _______ this car went past followed by a police car. They ______ at least 150 kilometers an hour.
#32322
A
when; should have been driving
B
while; would have driven
C
as; could have driven
D
when; must have been driving