Which of the following is the correct order of Piaget’s proposed stages of cognitive development?

The mean length of utterance (MLU) is the average number of morphemes used in a sentence.

Cognitive development has been found to occur in less discrete stages than Piaget believed.

__________ people attended the movie preview. There were no empty seats.

I need to study ____________ new vocabulary this weekend.

Earthquakes are common on islands in ______ Pacific.

_____ excited child.

Bashir and Natalya are on a two – week trip to _____ United States.

Yesterday, I decided to buy ______ digital camera as ______ birthday present for my husband.

Complete the tag question. Derek can speak Turkish, ______ he?