Указательные местоимения: this, these, that, those

Where are … engineers from?

Who is … ?

Is … family big?

… boy is my brother.

Where is … swimmer from?

What colour are … balls?

… girl is my sister?

How old is … doctor?

Where is … driver from?

… dog is black or white?

… girraffes are very nice.

… books are funny.