There is -a---- a charming smile on his face

(ch>='a' && ch='A' && ch ch=(ch>='A'&&ch ch=(ch>='a'&&ch ch=（ch>='A'&& Is there a window? There is a middle there is a cat there is a problem Is there a school Is there a house___? There is a Is there a. there is a There is a kitshen. There is a pair 英语单词( )a( )ch main(){ char ch ; scanf(%c,&ch); ch=(ch>='a'&&ch C语言 ch=（ch>='A'&& ch