T-02. Unit 2. p. 33

The ................... of a teenager goes through a lot of changes.

• brain

• adolescent

To get enough ......................, get a good night’s sleep.

• experience

• rest

A scientist states a ...................... to explain why something happens.

• theory

• structure

The .................... of making your brain work more efficiently happens when you are a teenager.

• structure

• process

Who is considered to be an adolescent? (choose 3 correct answers)

• a 6-year-old boy

• a teenager

• a 13-year-old girl

• a 15-year-old boy

What activities does a researcher do? (choose 3 correct answers)

• study animal behavior

• learn how the human brain works

• create efficient road maps

• find scientific explanations

Which words relate to the phrase to select? (choose 3 correct answers)

• to choose

• to decide

• to pick

• to combine