Избери правильное слово из 2-ух.1. I039;m going to get up early

Избери правильное слово из двух.
1. I'm going to get up early tomorrow. I'f I have/had time, I'll/I'd walk to school.
2. I'f I have/had time, I'll/I'd walk to school, but it's just not possible.
3. We never leave food on the table I'f we do/did, the cat will/would eat it.
4. 'Shall I put this on the table?' ' I'f you do/did, the cat will/would eat it.'
5. I'm not going to open the window. If I open/opened the window, it will/would be too noisy.
6. Maybe I'll open a window. But if open/opened s window, if will/would be very noisy.