Defining or non-defining relative clauses - exercise 5
Complete defining and non-defining relative clauses with 'that', 'who' or 'which'.
I saw a boy who ran out of my office. - I saw a boy that ran out of my office.
My dad is 75. He still works. - My dad, who is 75, still works.
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For elementary - intermediate learners of English as a foreign language.