Click on the appropriate answer to fill in the gaps.
(1) The dog
______ barks all the time is not dangerous.
(2) The girl,
______ is wearing glasses is my sister-in-law.
(3) The cinema
______ was sold last week is being destroyed.
(4) I don't know
______ umbrella is that one on the desk.
(5) The man
______ I invited was an old friend of my father's.