A team of soldiers was/were playing against a team of sailors.
was
The audience was/were the biggest we have ever had.
was
The farmer's herd was/were sold for a good price.
was
The United Nations is/are an important organization.
is
The teacher gave them a lot of good advice/advices.
advice
The congregation were/was saying their prayers.
were
He kept the class inside because it/they had been playing tricks during the lesson.
they
A lot of people has had/have had influenza this winter.
have had
A number of suspicious people has/have been arrested.
have
A bunch of flowers was/were offered to the visitor.
was
I have got a lot of information/informations for you
information
The great orator rose to speak and the crowd were/was silent.
was
The cattle is/are coming out of the stable.
are
These clothes is/are really fashionable.
are
The team is/are trying on the new boots.
are
The pack of cards was/were lying all over the floor.
were
3,000 Euro is/are a lot of money.
is
Run! The police is/are coming.
are
Athletics is/are my favourite sport.
is
The crew was/were all seasick.
were
Where is/are my scissors?
are
No news is/are good news.
is
My new glasses have/has cost a fortune.
have
1,000 kilometres sound/sounds like a lot.
sounds
The furniture is/are really old.
is