Two letters can be added to each word below to create new words in such a way that the last two letters of each word are related. The two letters are different for each clue.

1. HI
2. BE
3. TO
4. DO
5. BEG
6. AGO
7. ARM
8. SAND

Answers:

A U.S. state postal abbreviation can be added to each word: 

1. HIDE
2. BEND
3. TONE
4. DOME
5. BEGIN
6. AGONY
7. ARMOR
8. SANDAL 

Credit: Pauline Burman
STATELY ADDITIONS (#4-8)