1
The Wright brothers observed the birds before they invented the first aeroplane
2
George invited me to his party this Saturday.
3
Greek people produce tons of olive oil every year.
4
The Wright brothers invented the aeroplane
5
They moved to Paris a month ago
6
The Wright brothers succeeded in flying the first plane.
7
My father advised me not to drive fast.
7
4
3
6
1
5