Question

multiple choice question
a childs expressive vocabulary consists of words that the child
o understands but cannot say.
o has most often heard adults say, whether the child understands them or not.
o recognizes but does not yet understand the precise meaning of.
o uses when speaking.

Explanation:

Expressive vocabulary refers to the words a child uses in speech. Receptive vocabulary is for words understood. So a child's expressive vocabulary consists of words used when speaking.

Answer:

D. uses when speaking.