Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

Exercise 4

Children around the world acquire language in the same four stages that are associated with growth and development of the (a) _____. In the first stage, generally at about the age of 6 months, the infant makes one-syllable sounds; this is called (b) _____. By about 1 year of age, a child forms (c) _____, which usually refer to what the child can see, hear, or feel. At about 2 years of age, a child makes (d) _____ to express various actions or relationships. At about 4 years of age, a child is forming sentences, which range from three to eight words in length and indicate a growing knowledge of the (e) _____.