The blanks in each clue below can be filled in with the same two letters, in the same order, to form words. The two letters are different for each clue.

1. _ _ IFI _ _

2. _ _ RMI _ _

3. _ _ ALG _ _

4. _ _ GRA _ _

5. _ _ STO _ _

6. _ _ GRA _ _

HINTS:

The first letters are:

1. E

2. T

3. A

4. D

5. R

6. I

Answers:

1. Edified

2. Termite

3. Amalgam

4. Degrade

5. Restore

6. Ingrain