Grammar- a

It ---- that the less children sleep, the more likely they are to behave badly.

It ----- appears that someone has been stealing personal items from the changing rooms.

Mark ---- to have aged a lot over the last years.

He may not look it, but he is ---- to be one of the wealthiest people in the country.

---- to some sources, the latest research is seriously flawed.

Despite the fact that there will be an autopsy, his death is ----- to have been from natural causes.

---- are thought to be several reasons why the species died out.

The missing couple are believed ---- have had financial difficulties.

It is understood ---- the minister will be resigning in the near future.