1 The first prize for research was gave/given to Ms Lynn Gallagher.
2 The species has not been seeing/seen for a year now.
3 We taught/were taught by university graduates for a term.
4 If food dropped/is dropped on the floor, it is unsafe to eat.
5 Many inventions created/are created by coping what is found/are found in nature.
6 Languages are learnt/have been learnt this way for hundreds of years.
