陈述句：

I am a new student and she is a good student.

答案：True

陈述句：

She has some reasons but I have not any reason at all.

答案：True

陈述句：

We can do something which the things are very easy.

答案：True

陈述句：

My friend and I all love some fresh vegetables.

答案：True

陈述句：

The girl who sitting on stone is my little sister.

答案：False

这些陈述句涵盖了不同的语法结构和用法，希望对你有所帮助。