1/ I like Mary who is very considerate.
2/ Mr. Nick who arrived very late called the policemen.
3/ She fell in love with a man who was from another country.
4/ I usually talk to the man who comes from the USA.
5/ They have known Mr. Allen who is a famous writer.
6/ The children who are playing there are lovely.
7/ The little girl who hurt her knee was crying.
8/ Columbus who discovered America was a great explorer.
9/ I am a boy who is wearing a white T-shirt.
10/ Amstrong who first walked on the moon lives in the USA.