A Grammatical Morpheme Refers to a Missing Start or Stem

Q3: Private speech is to _ as inner

Q22: By the age of _ years, most

Q29: By about _ months of age, a

Q42: While sitting with her parents in a

Q104: Which is a key cue used by

Q117: Erik is having difficulty saying his "Rs,"

Q130: The defining characteristic of centration is _

Q137: When an infant starts licking their lips

Q139: The zone of proximal development refers to

Q140: Piaget believed that by about 18 months