I often talk about the importance of looking for "keywords" or "similar words" in the reading test, but the same advice applies to many questions in the listening test.
Look at the following question from Cambridge IELTS 4:
Which argument was used against having a drama theatre?
A) It would be expensive and no students would use it.
B) It would be a poor use of resources because only a minority would use it.
C) It could not accommodate large productions of plays.
Find the answer by looking for the "similar words" in the transcript below.
There was, however, much disagreement about whether to build a drama theatre. Just over forty per cent of the respondents were in favour, but a largish minority were strongly against it, claiming that it is elitist and a waste of funds.