下列对会计基本假设的表述中恰当的是（）。

A．在会计分期的前提下，会计确认、计量和报告应该以企业持续、正常的生产经营活动为前提

B．一个会计主体必然是一个法律主体

C．持续经营确定了会计核算的空间范围

D．会计分期确立了会计核算的时间范围 

根据句意及汉语提示写单词。

1. I have a happy family and I _______ (很) love my family.

2. Regular _______ (身体的) exercise is good for our health.

3. He saw two films last week, but he liked _______ (两者都不) of them.

4. We have two _______ (体育) classes every week.

5. He is good at _______ (地理) and knows a lot about mountains, rivers and cities around the world.