We heard him asseverate his good intentions but his actions belied his words.

affirm
incite
defy
cancel

The correct answer is A. affirm.

To asseverate is to state something emphatically or to declare something to be true. In the given sentence, the speaker is saying that they heard the person state their good intentions, but their actions did not match their words. This means that the person’s actions contradicted their words, or in other words, belied them.

The other options are incorrect because they do not accurately describe the meaning of the sentence.

  • To affirm is to state something positively or to declare something to be true.
  • To incite is to provoke or stir up someone to do something, especially something violent or unlawful.
  • To defy is to refuse to obey or submit to someone or something.
  • To cancel is to make something no longer valid or effective.