Вмест многоточия вставить глагол *to be* в настоящем неопределённом(простом) времени 1. i a student.i at home. 2.sundey my day off. 3.diamonds not cheap. 4."where the children? "- "i don't know" 5. my friends 40 years old 6. you welcome. 7.what country she from?

1. I am  a student.I am  at home.
2.Sundey is.. my day off.
3.Diamonds is not cheap.
4."Where is the children?"- "I don't know"
5. my friends is 40 years old
6. You are welcome.
7.What country is she from?