2. In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? _cca_a_ca_ac_ab
3. A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. Morning, Afternoon, Evening, ?
8. A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. CDE, IHG, KLM, QPO, STU, ?