How coding array as variable in iclose() function??

 i have one simple question. if i explain well it would be double ok. Que. is; i have string array as  pairs[28] . This array consist of 28 pairs. For example i want to put this array as variable into the iclose() function. Such as;
for(int i=0;i<500;i++)
{
For(int k=0;k <28;k++)
{
iclose( pair[k], 0 , i )
}
}

how i code this string variable? With q. marks or using + ? i want to code symbol as variable that comes from array pair[] and how ? 

Thanks