下列各项中，没有语病的一项是（    ）

A: Hi! ____?

B: I'm great. What are you doing here?

A: ____. What about you?

B: I want to send a postcard to my friend.

A: Oh, I see.

B: Can you tell me how to write a postcard?

A: ____! ____. Then write what you want to say to your friend on the left. You should put the address on the right and ____.

B: Oh, I see. Thank you very much.

阅读下面两首唐诗，完成小题。

慈姥竹

李白

野竹攒石生，含烟映江岛。翠色落波深，虚声带寒早。

龙吟曾未听，凤曲吹应好。不学蒲柳凋，贞心尝自保。

酬人雨后玩竹

薛涛

南天春雨时，那鉴雪霜姿。众类亦云茂，虚心能自持。

多留晋贤醉，早伴舜妃悲。晚岁君能赏，苍苍劲节奇。

若分式$\frac{2}{a+1}$有意义，则a的取值范围是____ ．