Ответ:

Present Simple, Present Continuous, Present Perfect, Present Perfect Continuous

Greetings from London!

The weather here 0) is (be) fine. I am sitting (sit) in a café right now with Jill. She is drinking (drink) a hot cup of English tea. We have been walking (walk) since morning now we feel (feel) really tired.

We are having (have) a great time here! We are staying (stay) in a nice hotel in the heart of the city. We get up (get up) early every day and spend (spend) most of our time sightseeing. We have already visited (already/visit) The Tower of London and London Dungeon. We mean (mean) to visit Madam Tussaud's but we aren't able to (not be able to) make time to visit it yet. Later tonight, we are going (go) to the theatre. London is a wonderful city!

I am looking (look) forward to showing you all my photos when I get (get) home.

Love,
Jenny