Вставь am, is, are. Larry_____in the house. They_____candles. I_____happy. Daddy____sad.

Larry is in the house. They are candles. I am happy. Daddy is sad.  

Глагол to be в настоящем простом времени в английском языке имеет три формы: is, am и are. Is употребляется с местоимениями he, she, it. Are употребляется с местоимениями you, we, they. Am употребляется только с местоимением I. 

I am a doctor.

He is a student. She is very nice. It is very cold today.

You are very clever! We are friends. They are brave.