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
Smiles around the world _____ be false, ______ other feelings like anger, fear or worry.
#95306
A
must; hide
B
must; hiding
C
can; hide
D
can; hiding
We are invited to a party______ in our club next Friday. 
#93581
A
to be held
B
held
C
being held
D
holding
I don’t mind _______ the decision as long as it is not too late.
#88529
A
you to delay making
B
your delaying making
C
your delaying to make
D
you delay to make