I. Поставьте существительные, заключенные в скобках, во множественное число; произведите все необходимые изменения в предложении:
1. This ( investigator) is a good specialist.2. My brother's (child) is a school-boy.3. That (woman) is a teacher. 4. This (higher school) is not the only school in my city.5. The new (house) is very nice. 6. That (city) is very old. 7. This young (man) is my sister's friend.8. This student's future (profession) is very interesting.