affirmative

他对这个提议给出了肯定的答复。

He gave an ___affirmative response to the proposal.

他对我的建议给予了肯定的回应。

He gave an ___affirmative response to my suggestion.

当她询问是否可以加入时，他给出了肯定的答复。

When she asked if she could join, he gave an ___affirmative reply.