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Defining & Non-defining Relative Clause

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  • Make it as a full sentence! I'll never forget that moment. I met my favorite singer.
    I'll never forget that moment when I met my favorite singer.
  • Make it as a full sentence! DVDs are similar to compact discs. They have replaced videos.
    DVDs, which are similar to compact discs, have replaced videos.
  • (Is it using who, which, when, where) They employed someone ____ was a specialist.
    who/that
  • Is it Defining/Non-Defining? He was unimpressed by the coffee machine that automatically brewed tea and coffee for the morning.
    Defining - important
  • Make it as a full sentence! Our IT manager has installed a spam filter. It identifies and moves unwanted emails.
    Our IT manager has installed a spam filter which/that identifies and moves unwanted emails.
  • Make it as a full sentence! The mobile phone used to be quite uncommon. Now it is everywhere.
    The mobile phone, which used to be quite uncommon, is now everywhere.
  • Make it as a full sentence! The internet was invented in 1978. It is very popular today.
    The internet, which is very popular today, was invented in 1978.
  • Make it as a full sentence! The photocopier is a machine. It is used frequently in today's offices.
    The photocopier is a machine which/that is used frequently in today's offices.
  • Is it Defining/Non-Defining? He didn't approve of workers who worked from home.
    Defining - important
  • (Is it using who, which, when, where?) A typing pool was a place ____ had twenty people with twenty typewriters.
    where
  • Is it Defining/Non-Defining? The tea lady, who knew everybody, was part of the community, not a machine.
    Non-defining - extra information
  • Make it as a full sentence! A USB is a device. It is used to store files and information.
    A USB is a device that/which is used to store files and information.
  • Make it as a full sentence! A fax is on your desk. It's from Head Office.
    A fax which/that is on your desk is from Head Office.
  • Is it Defining/Non-Defining? He said that in the old days a young man, who was usually known as the post boy, delivered the internal mail by hand.
    Non-defining - extra information
  • Is it Defining/Non-Defining? It was a machine that really did save money.
    Defining - important
  • (Is it using who, which, when, where) He asked about the specialists ____ we employed as contractors.
    who/that
  • (Is it using who, which, when, where?) The first comment ____ my father made was that the office was very noisy.
    which/that
  • (Is it using who, which, when, where) He asked about the room ____ we store the software
    where
  • (Is it using who, which, when, where) The server room is the place ____ all the confidential data is stored.
    where
  • Make it as a full sentence! A network is a group of computers. They are connected together.
    A network is a group of computers that/which are connected together.
  • (Is it using who, which, when, where)The 1950 was a time ____ technology was still quite rare in the workplace.
    when
  • (Is it using who, which, when, where) The greatest change ____ has been made has been with electronic communications.
    which/that
  • (Is it using who, which, when, where) Can you suggest a time ____ the IT staff can repair the server?
    when
  • Make it as a full sentence! (iPods or MP3 players are mini computers. They store music and movie files.) People can carry them wherever they go.
    iPods or MP3 players are mini computers which/that store music and movie files. People can carry them wherever they go.
  • Is it Defining/Non-Defining? My father is a man who was working in an office environment in the 1950s.
    Defining - important
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