Fill in the correct preposition:
1. Due to the heavy rain the concert was called ______.
2. The tsunami in Indonesia called ________ immediate action.
3. The meeting was called _____ but we still don’t know why.
4. Call _____ sometime and we’ll watch the new DVD together.
5. A nurse often calls _____ my granny because she is not well.

• off
• for
• off
• in
• on