Rewrite the sentences

Rewrite the sentences:
1. The last time we visited Kuala Lumpur was 5 years ago.
-> It's............
2. I began to read that book on September 20th.
-> I have..........
3. We begin to wash this car at 8 this morning.
-> We have..........
4. I last read a book on September 20th
-> I haven't............