英语蒂姆和他的家人在花园里谈话怎么说？

Tim and his family are having a talk in the garden.
Tim is talking to his family in the garden.

在书面英语， talk 极少用作及物动词，除非在 talk 后接用以下的宾语： Stop talking nonsense. They are talking business again.

若不是接用上列的宾语，talk 后必需接用前置词 about。举例：正确： Betty and Susan are talking about the trip to London.

由于talk在问题中是不及物动词，所以talk可以单独使用。而且，上面两句都是正确的。

这两句都可以
Tim and his family are talking in the garden.
Tim is talking with his family in the garden.