The sentence is:
"He was deaf ________ all our requests."
The correct expression is "deaf to", which means unwilling to listen to or ignore someone's requests, advice, or appeals.
Let us examine each option:
Option (1): For
"Deaf for" is not a correct English expression.
Hence, this option is incorrect.
Option (2): With
"Deaf with" is not used with the adjective deaf in this context.
Hence, this option is incorrect.
Option (3): At
"Deaf at" is not a grammatically correct collocation.
Hence, this option is incorrect.
Option (4): To
The phrase "deaf to" is the correct idiom, meaning ignoring or refusing to pay attention to something.
Therefore, this option correctly completes the sentence.
Thus, the sentence becomes: \[ \boxed{\text{He was deaf to all our requests.}} \] Hence, the correct answer is Option (4) – To.
Choose the meaning of the underlined word.
The teacher reiterated the importance of steady and hard work for getting through the examinations.