In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? a _ c a a b _ a _ b c a a b _ a _ b _ a
2. In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word. Nightwalker
6. In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? a _ c a a b _ a _ b c a a b _ a _ b _ a