Условие задания:

3 Б.
Read these sentences and choose have to, has to or had to. Write one variant into each sentence.
Don’t use capital letters and full stops.
1. Steve doesn’t understand much French. You ____ speak very slowly to him.
2. It’s late. I _____ go now.
3. We did an exam yesterday. We ______ answer six questions out of ten.

Raymond Murphy. English grammar in use- Cambridge: CUP, 379p.