Добавте(is/isn,t/are/aren,t) Mr Wren's grandson six years old. The houses in this street...

Question

Добавте(is/isn,t/are/aren,t)
Mr Wren's grandson six years old.
The houses in this street very big.
The examination not beautiful.
Those flowers very beautiful.

Answer 1

1)is
2)are
3)aren't
4)isn't