Question

Перепишите предложения, подчеркните сказуемое главного предложения и определите видо-временную форму и залог глагола. (Напри¬мер, was going - Past Continuous Active от глагола to go).
1)Some attempts to find the metal in the free state were made ten years ago.
2)It is thought that this island was a tropical zone millions of years ago.
3)A lot has been discovered about journeys to the South Pole.
4)Language helps us to make the best of our life

Answer 1

1)Some attempts to find the metal in the free state were made ten years ago.
were made - Past Indefinite Passive от глагола to make 
2)It is thought that this island was a tropical zone millions of years ago.
is thought -  Present Indefinite Passive от глагола to think
was - Past Indefinite Active от глагола to be 
3)A lot has been discovered about journeys to the South Pole. 
has been discovered - Present Perfect Passive от глагола to discover 
4)Language helps us to make the best of our life
helps - Present Indefinite Active от глагола to help