Select the most appropriate option to fill in the blank.

The class teacher made us wait after school to _____ some advice on how to attempt the board exam.

give

The correct option to fill in the blank is give.

The sentence is about the class teacher who made the students wait after school to give them some advice on how to attempt the board exam. The word "give" is the most appropriate word to fill in the blank because it means to provide something to someone. The class teacher is providing the students with advice, which is a valuable gift.

The other options are not as appropriate:

• Leave means to go away from a place. This does not make sense in the context of the sentence.
• Pay means to give money in return for goods or services. This does not make sense in the context of the sentence.
• Deliver means to take something to someone or to a place. This does not make sense in the context of the sentence.