Question

Choose the best option to complete the conversation:
Tony: Choosing a gift for Tara is difficult. I have to _______ my brains for a good one.

• A. rack
• B. crack
• C. pull
• D. break

Answer 1

Answer: (A)

'Idiomatic expressions are a type of informal English that have a meaning different from the meaning of the words in the expression.'

Option A: From the options, 'rack' forms an idiomatic expression 'rack my brains'. It means 'to struggle to recall or think of something'. It relates to the given sentence "Choosing a gift for Tara is difficult. I have to...for a good one". Hence A is the correct option.

The other words 'crack', 'pull' and 'brain' each do not form an idiomatic expression. They all form literal meanings in the sentence, meanings which are not quite relevant, nor possible. Hence options B, C and D are incorrect.