As a t (a)   , he is very hardworking and modest.

What are the differences between teen brains and a (a)   brains?

Your j (a)   comes from your knowledge and experience over the past years.

As time goes by, he becomes more m (a)   .

Listening to others is a very important b (a)   .

You should e (a)   active and healthy relationship with your classmates.

As we know, the second growth s (a)   starts around age 12.

She made no r (a)   to my questions, which made me very angry.

The scientists used a mouse as s (a)   in the experiment.

S (a)   your homework and send it to your teacher quickly.

I made a fish h (a)   and planned to go fishing next weekend.

Myelinization will help teen brains operate in a more p (a)   and efficient way.