that, what, which, who

Please choose the most appropriate answer for each sentence.
  • 1

    ......... is that sitting over there in the corner?

  • 2

    I don't understand a word ......... you are talking about.

  • 3

    They have a very large house round ......... there are some lovely gardens.

  • 4

    I'm looking at the photograph ......... you sent me with your letter.

  • 5

    There is a new television programme called: '......... wants to be a millionaire?'.

  • 6

    I think you will see that this is the best museum ......... you can find in the town.

  • 7

    The police want to find out ......... drove the red car into the shop window.

  • 8

    Did you meet the lady ......... uncle works in the library?

  • 9

    The person in the house next to mine knows someone ......... met the Queen.

  • 10

    The grass, ......... I cut every week, seems to grow very quickly.