气候、时间、地域、生产条件、政策等因素的变化能对商品的价格产生影响。各种因素对商品价格的影响是通过改变

A．该商品的社会劳动生产率

B．该商品的价值量

C．该商品的个别劳动生产率

D．该商品的供求关系

根据对话情景，填入适当的单词。

A: Hi, Nick. How are you?

B: (1)_______ fine, thanks. And you?

A: I'm OK.

B: (2)_______ me, what's this in English?

A: It's a (3)_______ ball.

B: Is this (4)_______ ball?

A: No, it isn't.

B: Do you have one?

A: Yes, I do.

B: What (5)_______ is yours?

A: It's yellow.

B: I have a tennis racket. (6)_______ play tennis.

A: That sounds (7)_______ . But I (8)_______ have one.

B: No problem. My brother (9)_______ one. Let's go and find (10)_______.

A: OK. Let's go.