—There’s ______ ball on the ground. Would you please pass ______ ball to me?

—With pleasure.

A．the; the

B．the; a

C．a; a

D．a; the

函数delete(s,i,n)的作用是从字符串s中删除从第i个字符开始的n个字符，请填空。 void delete(char s[],int i, int n) { int j,k,legth=0; while(s[length]) 【11】 ; -i; j=i; } if( 【12】 ) { k=i+n; if(i+n＜length) while(k＜length) s[j++]=s[k++]; s[j]=’\0’ }