Countable- можно посчитать отдельными предметами
uncount...-нельзя посчитать в том виде, как приведено слово (не имеют множественного числа в обычном понимании, но могут в поэтическом и нек. других)
count uncount
lemon, tomato, pasta, sause, cheese, butter, rice,
sausage, strawberry, meat, milk, chocolate
egg
В общем случае мы не можем посчитать "рис", но зернышки риса можно посчитать. "Молоко" нельзя, но "стаканы молока" можно
1. A
2. An
3. A
4. An
5. A
1. Is
he Isn't
2.Are
they aren't
1. The room my frienden.2. Rooms my friendis.3. The room my friends.4. The rooms my friends.5. The son of an engineer.6. our factory engineers.7. The daughter of our teacher.8. Dictation of the student.9. Letters of your economists.10. The seventh lesson of the Word.11. The children of these people.12. Maria's friend.<span>13. Letter of Peter.</span>
My brother Peter lives in Kursk. He's .a..young doctor. He's got .a..family. He's got .a..wife and two children. His wife Helen is .a..teacher. She works at school. She hasn't got ..a.mother, but she's got ..a.father. Helen's father is ..an.engineer. He lives in .the..country now.
... Peter's office is near his house. He goes there in .the..morning and comes home for dinner, then he goes back to ..the.office.Peter's son goes to school. Peter's daughter is .a..girl of five. She goes to .a..nursery-school. On Sundays all of them often go to ..the.country to see Helen's father.
Использовать в правильной форме, чтобы закончить предложения.