3 Find and correct the mistakes. Three of the sentences are correct. 1 The foreign language which I like best is French. 6 7 2 David Crystal is the linguist who he wrote some fascinating books about the English language. 8 9 10 3 Can you tell me the name of your friend when I met? 4 This is the list of verbs which you need to revise. 5 He made a strange gesture who I didn't understand.

Here are corrected versions of the five sentences (keeping to standard grammar for restrictive relative clauses): 1. The foreign language that I like best is French. 2. David Crystal is the linguist who wrote some fascinating books about the English language. 3. Can you tell me the name of your friend whom I met? 4. This is the list of verbs that you need to revise. 5. He made a strange gesture that I didn't understand. Notes: - Relative clauses referring to things (not people) use that/which; for restrictive clauses, that is common. - For sentence 3, whom is the formal object pronoun after a preposition (met). - You can also omit the relative pronoun in 1: “The foreign language I like best is French.”