A.the child gets (1)_____

　　B.this (2)_______on interaction

　　C.is (3) _______ to the growth

　　But speech has to be induced, and (4)_______ between the mother and the child, where the mother recognizes the signals in the child's babbling, grasping and smiling, and responds to them. Insensitivity of the mother to these signals dulls the interaction because ( 5 ) ____ and sends out only the obvious signals. Sensitivity to the child's non-verbal signals ( 6 )_____ and development of language.

　參考答案:

　　1、discouraged　2、depends　3、essential　4、B　5、 A　6、