Unable to select element

In my application one field is there where I need to give input. After giving input then drop down list is coming and I should select one item in drop down. Can you suggest me how to do this

Assuming you have an HTML SELECT element, you could use any of these:

If it’s not a SELECT element, then you’ll need to provide more information - paste the relevant HTML here.

I tried all possible ways u mentioned. Actually that element is Not a drop down.It is a normal field. If I give input as “It” then that field will show suggestions starting with “It” . In that suggestions I need to select one suggestion

I tried all possible ways u mentioned.

Except:

paste the relevant HTML here.