It is said that in Australia there is more land than the government knows _______.
According to the periodic table, still some elements undiscovered.
Calculations, which are astronomically exact, have been made with the use of computers.
The man denied any thing at the supermarket when he was questioned by the police.
“Do you think I should attend the lecture?” she asked me.
Some women a good salary in a job instead of staying home, but they decided not to work for the sake of the family.