Question

complete com there was ou there were : a) ______ a bird in the tree b)______ apples in the bag c) _______ flowers in thevase d) _________ a flower in the garden e)_____ Roses on the table f) _______ a cat above of Chair g)________ a notebook on the desk h) ______ a neighobor working in the Forest

Answer 1

a) There was
b) There were
c) There were
d) There was
e) There were
f)  There was
g) There was
h) There was

sempre que for singular você usa there is ou there's (são a mesma coisa) eno passado fica there was
plural there are/there're e no passado there were

Answer 2

a) There was a bird in the tree ( Havia um passarinho na arvore)
b) There were apples in the bag ( Haviam maças na bolça) 
c) There were flowers in the vase ( Haviam flores no vaso)
d) There was a flower in the garden( Havia uma flor no jardim) 
e) There were roses on the table( Havaim rosas em cima da mesa) 
f) There was a cat above the chair ( Havia um gato em cima da cadeira)
g) There was a notebook on the desk ( Havia um caderno na escrivaninha)
h) There was a neighboor working in the forest (Havia um visinho trabalhando na floresta) 

Espero ter ajudado ;)   
 Não se esqueça there was é sempre para singular (livro, maça) e there were sempre pra plural( livros, maças)