Ответ:

3. Choose the correct word.

  1. This is my school. (It) is Hillside secondary school.
  2. Mr Brown is my favourite teacher. (He) teaches IT.
  3. I haven't got (a) dictionary.
  4. What's this in English? It's (an) eraser.
  5. Are they new to the school? -No, they (aren't).

Ответ: It; He; a; an; aren't.