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Exercise 1.

Complete the following sentences with have/has to or don’t doesn’t have to:

James is a smart guy, he_____________________ (study) a lot!
Lorenz and Susan live in a really old house, they ____________ (buy) a new one.
Do you really __________ (speak) so fast? I_______ (write down) every single word!
No, you__________________ (write down) every word I say, just the most important ideas!
Oh, look at the time I_____________(run) or a I’ll lose the train!
You___________________(run), the train is going to be delayed.
She has wonderful hair but she __________________ (wash) it every day.
We can share a taxi if you want to. You ______________ (walk) home.