They are broadening the bridge to       the flow of traffic. 
#12044
A
put off
B
speed up
C
turn on
D
work out
推荐题目
Dust ________ in a room if we do not clean the room regularly.
#10550
A
accomplishes
B
accumulates
C
accommodates
D
achieves
All those second-hand goods are sold at ____ before.
#14074
A
30% as lower price as
B
30% as low a price as
C
as 30% low price as
D
30% lower price than