人类的需要是分成许多类的，人在同一时间内会有多种的需要和动机，这一论断属于（）的人性假设。

A.经济人

B.社会人

C.复杂人

D.自我实现人

句型转换：按要求完成下列句子。

1. There is a tree in the garden. (就划线部分提问)

     _______ in the garden?

2. That is her photo. (就划线部分提问)

    _______ photo is that?

3. Art is my favorite subject. (改为同义句)

    I _______ art _______ of all subjects.

4. There is an old tea house near here. (改为复数形式)

    There _______ _______ old tea houses near here.

5. Mr. Green lives next to me. (改为否定句)

   Mr. Green _______ _______ next time.