Answer:
2. Japanese, French and English are needed here.
3. You must buy your ticket before you travel. Tickets are sold on the train.
or tickets are bought on the train.
4. Guest are instructed not to wear pyjamas and dressing gowns to breakfast.
5. Our pasta was cooked by our own chef,so it's fresh everyday.
6. All the articles in this magazine were written by students.
Do you have an example of the "text"? It's difficult to answer a question like this without seeing the text itself.
Main pieces of imagery can be something describing how stuff looks, smells, feels, or what it sounds like. It should create a picture in your head. So whatever helps illustrate the text for you is an example of imagery! Hope this helps!