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

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