Present Perfect Simple or Continuous

Choose the correct tense.

 1. I   16 letters so far this morning and I feel Like I for a week!

 2. She her mother in hospital several times this week.

 3. David   to contact his lawyer three times today and I since yesterday.

 4. People   the Jack the Ripper murder for over a century now, but they them yet.

 5. Mr. Grant  in France for the last three weeks. He   the Louvre in Paris and he to the top of the Eiffel Tower.