Grammar fix

close attention

careful focus

To look at or think about something very carefully, noticing all the details.

collocationB1common

Hear it in context

Notice where the phrase sounds natural.

You need to pay close attention to the instructions if you want to do the job correctly.study
In my opinion, teachers should give close attention to students who are struggling in class.IELTS speaking

Pattern: pay/give close attention to [something]

WrongPay a close attention to the details.

RightPay close attention to the details.

'Pay close attention' — no 'a'.

Patternpay/give close attention to [something]

Choose the version that sounds natural in speech.

Stiff Kindly direct your meticulous and undivided concentration to this.

Natural Pay close attention to this part.

'Meticulous undivided concentration' is overblown; 'pay close attention to' is the natural phrase.

Words that usually travel with it.

Compare with 'general attention', which means not focusing on details.