No matter how fast we worked, ____.
#73128
A
we couldn’t catch up with them
B
and we couldn’t catch up with them
C
so we couldn’t catch up with them
D
but we couldn’t catch up with them
推荐题目
__________for the bus, I heard a noise,
#69550
A
While waiting
B
While I waiting
C
I was waiting
D
Waited
_________ it is snowing, it isn’t very cold.
#41103
A
If
B
When
C
Because
D
Although
The poor young man is ready to accept ______ help he can get. 
#72543
A
whichever
B
however
C
whatever
D
whenever