    Sentence’ ‘1: ‘Although: |: self-  regulation » improves gradually  throughout childhood = and  adolescénce,-¢arly childhood is:a.  crucial... «period for: 2 its.  development'a time. .. when:  children: learn”. to overcome  impulses by, thinking’ before they:  act.    Sentence '2:° Children learn. to:,  think ‘before “they act, therefore  overcoming “impulses...’. during  early childhood:    