Rewrite these sentences

1. It started to rain when I arrived home from work.

It has...........................................................…………………………………………..

2. London is  more exciting than Tokyo.

Tokyo is ....…………………………………………..

3. I have not met them for a long time.

It is.........................................………………………………………………………………..

4. The play was so boring that we went out in the middle.
  It was.......……………………………………..

5. In spite of a good salary, he was unhappy in his job.

Although.he ...............................................................……………………