converse|conversed|conversing

教授们经常在研讨会上深入探讨学术问题。

The professors often ___converse deeply about academic topics during seminars.

他们边喝咖啡边愉快地交谈。

They happily ___conversed over coffee.

他们在交谈，享受这个时刻。

They are ___conversing and enjoying the moment.