[originaltext]Which reference do you recommend?(A) I think this one is the be

Which reference do you recommend?
(A)  I think this one is the best.
(B)  I’ll buy them.
(C)  Oh, I didn’ t recognize that memo.

I think your expense report contains many errors.
(A)  That container is too big.
(B)  Could you show me how to correct them?
(C)  That must be very expensive.