Ответ:
1. The girl learns English.-The girls learn English.
2. My friend gets up early.-My friends get up early.
3. The worker comes home at six.-The workers come home at six.
4. My brother works at a factory.-My brothers work at a factory.
5. His uncle lives in Poltava.-His uncles live in Poltava.
6. The bus runs quickly.-The buses run quickly
1. The engineers go to the plant.-The engineer goes to the plant
2. The pupils do their homework.-The pupil does his homework
3. The trees grow well.-The tree grows well
4. The boys go in for sports.-The boy goes in for sports
5. My friends study English.-My friend studies English
6. The girls sing very well.-The girl sings very well