——How much did this set of furniture cost?
——I forgot( ).
A.正确答案Chow much it costs
B.how much did it cost
C.how much it cost
D.how much does it cost
——How much did this set of furniture cost?
——I forgot( ).
——How much did this set of furniture cost?
——I forgot( ).
A.正确答案Chow much it costs
B.how much did it cost
C.how much it cost
D.how much does it cost