Дайте отрицательную и вопросительную форму предложений.
1) There were a lot a of famous people in the exhibition.
2) There is something on the shelf.
3) There well be somebody at the time.

1) There weren't a lot of... 2) Were there a lot of... 3) There isn't something... 4) Is there something... 6) There will not be somebody... 7) Will be there somebody... P.S. вместо многоточия будет идти продолжения предложений.