Odpowiedź:
1. I read books more often now than in the past. USE
In the past I didn't use to read books as often as I do now.
2. We met them on the train to London. WERE
We met them while we were traveling by train to London.
3. The last time my granny wrote to me was a few weeks ago. NOT
My granny has not written to me for a few weeks.
4. The police caught the criminals while they were escaping. AWAY
The police caught the criminals while they were running away.
5. My brother is a better tennis player than me. AS
I can't play tennis as good as my brother.