Question

Must. mustn't. don't have to I've told you befoe - you ______ play football in the street. You____ forget to lock the door before you leave. If you go to London. you _____ go to the Trocadero - it's great! My old dictionary is useless - I ____ buy a new one

Answer 1

I've told you before - you mustn't play football in the street.
You don't have to forget to lock the door before you leave.
If you go to London you must go to the Trocadero - it's great!
My old dictionary is useless - I must buy a new one

Answer 2

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It seems like you are asking me to fill in the blanks with the correct modal verbs in Russian. Here is my attempt:

Ответь подробно. Must. mustn't. don't have to. I've told you before - you mustn't play football in the street. You must forget to lock the door before you leave. If you go to London, you don't have to go to the Trocadero - it's great! My old dictionary is useless - I must buy a new one.

I hope this helps. If you want to learn more about how to use modal verbs in Russian, you can check out this [website](https://stackoverflow.com/questions/37893927/python-how-to-take-user-input-and-use-that-in-function). If you want to learn more about how to take user input and use that in a function in Python, you can check out this [tutorial](https://www.w3schools.com/python/python_user_input.asp).