Verified answer

Vitamin C was discovered in 1747.

Toothbrushes were invented by the Chinese.

The people were not taken to hospital after the accident.

A new medical centre was opened in my town last year.

A lot of remedies are made from plants.

I am/was not given any medicine at the hospital.

My teeth are checked twice a year.

Vaccinations were not developed until the 18th century.

I called for an ambulance but it was not needed.

Verified answer

was discovered

were invented
were not taken
was opened 
are made
was not given
are checked 
were not developed 
was not needed