Does Bob go to work           bus or           foot?
#49079
A
to; by
B
with; on
C
by; on
D
on; on
推荐题目
The cleaners must prevent the street ______.
#48619
A
getting dirty
B
from dirty
C
from get dirty
D
from getting dirty
Japan and other countries have taken action ________ prevent nuclear radiation (核辐射).
#48880
A
in order
B
in the order of
C
in order to
D
in order that