1= 1 interlanguage
2= 1 L1
3= 3 Error analysis
4= 2 Mistake
5= 2
6= 3
7= 2
8= 3
9= 3
10= 2
11= T
12= T
13= T
14= T
15= T
16 = F
17= F
18=F
19= F
20= F