我下午4:00在家写作业和狗玩。英语翻译。

这里是一般过去进行时。
因为是陈述过去正在发生的一件事情；
一般现在时是用于一个习惯性的动作，经常做的；
一般将来时是用于在一个未来时点做事；
I was doing my homework and playing with my dog at home at 4 o'clock.
谢谢！！

I wrote and played with dog at home at 4:00
个人见解，若有错误，请见谅。

At four o'clock in the afternoon, I am at home doing my homework and playing with my dog.

用一般现在时，表示的事实。而将来时会更加强调某一天的将来。可以出现两个at，一个加时间，一个加地点，翻译可以是I do my homework and play with my dog at 4 o'clock at home.