To construct a question involving the word "which", you must ask what one (or more) of many is the thing you are asking about.
For example:
Which of those books are from the library?
Or: which of these examples do you understand?
1) 30 minutes (a half of hour)
2) 90 minutes
3) 1/2 of apple
4) banana+1/2 of banana
5) 45 days
6) 2 weeks and 3.5 days
7) first(second) half of century
8) three minutes and half half minutes
<span>1)i very much am afraid to travel by plane</span>
<span>2)i met once the known actor in the train from St. Petersburg to Moscow</span>
<span>3)it always comes to school by the bicycle</span>
<span>4)if you go there by bicycle, you will be tired</span>
<span>5)sama a convenient way of travel - on the car</span>
<span>6)my dream - to drive on the grandfather's retrocar</span>
1. Who do you look like - your mum or dad? Кого ты любишь - маму или папу?
2. What do you want for breakfast?
3. How old is the website?
4. Where do they put letters and emails?
5. Which section has got all the letters and emails in it?
6. Why do you get that magazine every week? It`s rubbish!
7. How many books have you got?
8. What time does the interview start?
9. When do you write poems? In the evening?