1. May I open the window? Yes you may.
It is a bit hot here. 2. Could you lend me s5 dollars? I'm sorry. I haven't got any money on me. 3.
May I take this seat? Yes, of course. Nobody is sitting on this chair. 4. May I come in? No, you mustn't. It
is late. 5. May I watch a film on TV? Yes, of course. What programme is it?