1- a situation when you waited for a bus or a train 2- a challenging profession you know about

If you can talk about the cue card topic 
"Describe a subject that you think 
should be removed from school education programmes."
 you should be able 
to talk about the following IELTS cue cards topics as well:
x
Describe a subject you did not like in school.
x
Describe something you disliked at school.
Describe a positive experience that you had as a teenager.
 
You should say:
x
what the positive experience was
x
where you were then
x
who you were with 
and explain why you think this was a positive experience.

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[You will have to talk about the topic for one to two minutes. You have one 
minute to think about what you're going to say. You can make some notes to 
help you if you wish.]