Defining/Non-defining relative clauses - B2

I have three brothers.

• o My brother who lives in Sidney came to see me last month.

• o My brother, who lives in Sidney, came to see me last month.

I have one sister.

• o My sister who is 25 years old spent her holiday in France.

• o My sister, who is 25 years old, spent her holiday in France.

Bob's mum has lost her keys.

• o Bob's mum who is a musician has lost her car keys.

• o Bob's mum, who is a musician, has lost her car keys.

My friend Jane moved to Canada.

• o My friend Jane whose husband is Canadian moved to Canada last week.

• o My friend Jane, whose husband is Canadian, moved to Canada last week.

I am a shoe fanatic.

• o The shoes which I bought yesterday are very comfortable.

• o The shoes, which I bought yesterday, are very comfortable.

Mr Robinson is very famous.

• o Mr Robinson whom I met at the trade fair is a famous inventor.

• o Mr Robinson, whom I met at the trade fair, is a famous inventor.

Tamara has two cats. Both of them are black.

• o Tamara's two cats which can play outside are black.

• o Tamara's two cats, which can play outside, are black.

Kevin has four cats. Two of them are black.

• Kevin's two cats which are black can play outside.

• Kevin's two cats, which are black, can play outside.

We are on holiday. Yesterday we visited a church.

• o The church which we visited yesterday is very old.

• o The church, which we visited yesterday, is very old.

We are on holiday. Yesterday we visited a church.

• o St. Mary's Church which we visited yesterday is very old.

• o St. Mary's Church, which we visited yesterday, is very old.