I. Замените подлежащее, выраженное существи-тельным, личным местоимением. Образец: My aunt is a teacher....

1. This test is difficult. It is difficult.
2. These tests are easy. They are easy.
3. That computer is modern. It is modern.
4. Those computers are not new. They are not new.
5. My brother is a doctor. He is a doctor.
6. His sister is a student. She is a student.
7. Nick and I are good friends. We are good friends.
8. Bob and Tom are their children. They are their children.
9. Gene and Ann are at school. They are at school.
10. His uncle is an artist. He is an artist.

Для замены существительного, которое выполняет роль подлежащего в предложении, на личное местоимение, необходимо учитывать число и род существительного. Вот как можно заменить подлежащее в предложениях, которые вы предоставили:

1. This test is difficult.
   Заменяем "This test" на местоимение "It":
   It is difficult.

2. These tests are easy.
   Заменяем "These tests" на местоимение "They":
   They are easy.

3. That computer is modern.
   Заменяем "That computer" на местоимение "It":
   It is modern.

4. Those computers are not new.
   Заменяем "Those computers" на местоимение "They":
   They are not new.

5. My brother is a doctor.
   Заменяем "My brother" на местоимение "He":
   He is a doctor.

6. His sister is a student.
   Заменяем "His sister" на местоимение "She":
   She is a student.

7. Nick and I are good friends.
   Заменяем "Nick and I" на местоимение "We":
   We are good friends.

8. Bob and Tom are their children.
   Заменяем "Bob and Tom" на местоимение "They":
   They are their children.

9. Gene and Ann are at school.
   Заменяем "Gene and Ann" на местоимение "They":
   They are at school.

10. His uncle is an artist.
    Заменяем "His uncle" на местоимение "He":
    He is an artist.

В предложениях 1, 3 и 10 мы использовали местоимение "It" для обозначения неодушевленных предметов в единственном числе. В предложениях 2, 4, 8 и 9 использовали "They" для обозначения множественного числа. В предложениях 5 и 10 местоимение "He" использовано для обозначения мужского рода в единственном числе, а в предложении 6 "She" — для женского рода. В предложении 7 "We" используется для первого лица множественного числа.