Private cars are required to take turns off roads one out of five weekdays ____the  traffic pressure.
#97831
A
to reduce
B
reducing
C
reduce
D
reduced
推荐题目
I’ve never heard the word _______ in spoken English. 
#97441
A
use 
B
used 
C
using 
D
useing
They enjoyed _____ a wonderful evening at the Country Club.
#98395
A
spent
B
to spend
C
spending
D
spend
 .From the classroom window we saw a huge snake _____ the yard.
#97380
A
crossing
B
cross
C
across
D
having crossed