Directions: In the sentence, certain words are in bold and numbered from A to H, which are the possible pairs to be interchanged. Choose the pair(s) of the words that need(s) to be interchanged to make the sentence grammatically correct and meaningful.

a. These gold(A) rules and regulations(B) should have been reception(C) away with years(D) ago.
b. The mayor presented(E) him with a ridiculous(F) medal at an official(G) city done(H).