我们在公园里进行了轻松的谈话。

We had a relaxing ___talk in the park.

他和父母就他的未来进行了一次严肃的谈话。

He had a serious ___talk with his parents about his future.

我们就暑假计划进行了一次长谈。

We had a long ___talk about our summer plans.