补全对话。

Celio: Hi, Jim. What's the weather like today?

Jim: It's cool today. Today is Friday. 1_______________________________?

Celio: We have English and music on Fridays. Look! 2_______________________________?

Jim: He's my P. E. teacher.

Celio: 3_______________________________? 

Jim: He's very kind.

Celio: 4_______________________________?

Jim: No, he's not funny.

Celio: Oh, tomorrow is weekend. 5_______________________________?

Jim: I often play ping-pong. What about you?

Celio: I play ping-pong, too.

Jim: It's six o'clock. It's time to go home. See you.

Celio: See you.

执行下列程序：
STORE 0 TO m,n
DO WHILE n＜=10
m=m+n
n=n+2
ENDDO
m,n
RETURN
在屏幕上显示的输出结果是( )。

A．20 10

B．30 10

C．20 12

D．30 12