What i do for GUI text in Version 3.4

using UnityEngine.GUI; in C# Scipt, it give the error :
that it is a type not a name space. How i fix this problem in unity 3d version 3.4…
Please help me i am a beginner

using UnityEngine;
using System.Collections;

public class Michrophone : MonoBehaviour
{

void OnGUI () 
{
	GUI.Label(Rect(10,10,10,10), "here is the string line");
}

}

//you dont need to use “using UnityEngine.GUI;” comment this line and use above code for Reference