Put the correct form of the word in btackets in a

The Welsh are thought to be a group of talkative people.
People in Britain come from many different cultural backgrounds.
Do you think men are more aggressive than women?
I like Tom but always seems very reserved when you talk to him.
Nowadays, people all over the world need to be more tolerant towards one another.
My mothers always telling my sister not be so excited and try to keep calm