— What about the price of petrol now?

— It has been ______ 20 percent since the beginning of this year.

A. increased to    B. risen by    C. increased by    D. risen to 

— What about the price of petrol now?
— It has been ______ 20 percent since the beginning of this year

1. A.
   increased to
2. B.
   risen by
3. C.
   increased by
4. D.
   risen to

 --- What about the price of petrol now?

--- It has been ______ 20 percent since the beginning of this year.

A. increased to                            B. risen by    

C. increased by                           D. risen to 

---- -What about the price of petrol now?

--- --It has been ______ 20 percent since the beginning of this year.

A. increased to　　　　 B. risen by　　

C. risen to　　　　　 D. increased by