Put thew verbs in brackets in the correct tence:
1. How long ___ you ___ (learn) English?
2. How long ___ you ___ (know) your friend?
3. I love tennis. I ___ ___ (play) tennis since I was 10.
4. This crossword ic difficult. I ___ (do) it for 40 minutes.
5. Your English is good. How long ___ you ___ (learn) it.