Ответ:

Правильная форма глагола to be зависит от подлежащего: is употребляется с he/she/it, am — с I, are — с you/we/they.

  1. Susan is new to the school.
  2. I am 14 years old.
  3. They are in Room E.
  4. He is my best friend.
  5. You are in Grade 7.

Ответ: is; am; are; is; are.