Правильный порядок вопросов будет:
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2. Look there isn't anybody in the classroom
3. Mark told us nothing interesting...
4. Bob didn't have anyting to do....
5. They saw nobody in the...
6. The Smiths didn't know anything ...
7. Mike didn't t recognize anybody ...
8. Sarah learned nothing new
Скольно надо строчек или предложений?
Mamonts lived 20 thousand yers ago.Mamonts lived in one year with cavepeople. Mamonts were big elephats with hear. Мамонты жили 20 тысяч лет тому назад.Мамонты жили в одном периоде с первобытными людями. Мамонты большие слоны с волосами.