1.
SCD, TEF, UGH, ____, WKL

2.
B2CD, _____, BCD4, B5CD, BC6D

3.
FAG, GAF, HAI, IAH, ____

4.
ELFA, GLHA, ILJA, _____, MLNA

5.
CMM, EOO, GQQ, _____, KUU

6.
ZA5, Y4B, XC6, W3D, _____

8.
JAK, KBL, LCM, MDN, _____

9.
BCB, DED, FGF, HIH, ___

10.
P5QR, P4QS, P3QT, _____, P1QV