Complete the sentences with the present simple or past simple passive. colds are spread (spread) by sneezing. vitamin c (discover) in 1747. toothbrushes (invent) by the chinese. the people (not take) to hospital after the accident. a new medical centre (open) in my town last year. a lot of remedies (make) from plants. i (not give) any medicine at the hospital. my teeth (check) twice a year. vaccinations (not develop) until the 18th century. i called for an ambulance but it (not need).

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.

was discovered

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