What should come next in the following letter sequence?

A A B A B C A B C D A B C D E A B C D

A series is given , with one term missing . Choose the correct alternative from the given ones that will complete the series .

CAT , DBT , ECT , ?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

CL,HQ,MV,?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series:

FED , IHG , LKJ , ONM, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

WAX, YED, AIJ, CMP, ?

Which of the following terms follows the trend of the given list?

AAAAAAA, BAAAAAA, BBAAAAA, BBBAAAA, BBBBAAA, _______________

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

UMP, SKN, QIL, OGJ, ?

In the following question, select the related letter/letters from the given alternatives.

FOT : GOW : : RID  :  ?

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

DCB, HGF, ? , PON