which

An interrogative and relative determiner used to ask for information specifying one or more people or things from a definite set, or to introduce a clause providing additional information about a noun.

• 🇷🇺Вопросительное или относительное слово для выбора из ограниченного набора или уточнения

1. Interrogative selection A1 formal

   Used in questions to ask for information specifying one or more people or things from a known or limited set of possibilities.

   • Which book do you prefer?
   • Which way should we go?
   • Which students have finished the test?

   🇷🇺Вопросительный выбор

2. Relative reference (defining) B1 formal

   Used to introduce a relative clause that provides essential information to identify the noun it follows. Often interchangeable with 'that' in restrictive clauses.

   • The car which I bought is red.
   • This is the house which Jack built.
   • She wore the dress which she had made herself.

   🇷🇺Относительная ссылка (ограничительная)

3. Relative reference (non-defining) B2 formal

   Used to introduce a relative clause that adds extra, non-essential information about a noun. It is usually separated by commas and cannot be replaced by 'that'.

   • My car, which is ten years old, still runs well.
   • The conference, which was held in London, was a success.
   • He gave me a letter, which I read immediately.

   🇷🇺Относительная ссылка (неограничительная)