1. Do British taxi drivers have to ....?
We have to pass..., but we don't have to...
2. Do you have to....?
You don't have to..., but you have to...
3.Does your husband have to...?
No, he doesn't have to..., but he has to...
ex.2
2. It's quite difficult to understand American films.
4. Some of those students are a bit unfriendly.
5. Reading English books is a really good idea.