Use "I", "you", "he", "she", "am", "it", "we" or "they"
1. ... is doctor,and ... an vet.
2. This is our house. ... is very nice and comfortable .
3. What's this ? ... is my cat , ... is not very friendly .
4. How are ... ? – ...'m fine , thanks . And ...?
5. Meet Tom and Betty, ... are my best friends.
6. ... am a first year student. ... am very happy.
7. My sister is a teacher. ... is thirty years old.
8. ... are a very happy family.
Пожалуйста)

1. He is doctor,and he is an vet.2. This is our house. It is very nice and comfortable .3. What's this ? It is my cat , it is not very friendly .4. How are you? – I'm fine , thanks . And you?5. Meet Tom and Betty, they are my best friends.6. I am a first year student. I am very happy.7. My sister is a teacher. She is thirty years old.8. We are a very happy family.

1.he,she2.it3it,he4.you,i,you5.they6.i,i7.she8.we