What are we doing
Hi，dear friends。I have a new picture in my hand。It is very
nice。It is a picture of my family。 What are we doing？ Do you
know？
It was Sunday。 We were all at home. My husband was reading newspapers. I was writing a letter. My brother was playing computer games. What was my daughter doing? Oh,she was doing her homewerk.
Where was my dog? Can you see my dog? Oh, it is playing with
a ball on the floor. 请给我改改好吗？详细说明。

What are（were)因为你想表达的意思是我们当时在做什么，应该用过去时we doing
Hi，dear friends。I have a new picture in my hand。It is very
nice。It is a picture of（about）这句话你想表达的意思是这张照片是关于我家人的的意思吧？如果用of，意思就成了：这张照片是我们家的my family（families）抽象名词具体化表示家人。 What are（were)解释同题目 we doing？ Do you
know？
It was （on)Sunday。 We were all at home. My husband was reading newspapers. I was writing a letter. My brother was playing computer games. What was my daughter doing? Oh,she was doing her homewerk.
Where was my dog? Can you see my dog? Oh, it (he/she)外国人对狗一般都称呼he or she ,不用it。is（was）这个时态问题你疏忽了。 playing with
a ball on the floor.


这篇文章通篇都是简单句，不知道你是哪个年级的？如果需要可以告诉我，我可以根据你的年级适当帮你再改的深一点，让文章更流畅。