The same two letters, in the same order, can be inserted into the words below to form new words, but the letters of the words must be re-arranged around the two new letters. What are the two additional  letters, and what are the new words?

1. SAKE
2. RAVE
3. LEAP
4. RIMS
5. SOME
6. SEAR
7. LICE
8. LEES

HINT:
The two additional letters are almost always together.

Answers:

The two additional letters are QU:

1. SQUEAK
2. QUAVER
3. PLAQUE
4. SQUIRMS
5. MOSQUE
6. SQUARE
7. CLIQUE
8. SEQUEL

Credit: Will Shortz
NPR Weekend Edition Sunday Puzzle
December 9, 2012
QUICK! SNEAK IN THAT 'QU'