ผลลัพธ์ (ภาษาอังกฤษ) 1:
Because the teacher must be sure before you went to study together and really.
ผลลัพธ์ (ภาษาอังกฤษ) 2:
Because teachers have to make sure that she was going to study it, really.
ผลลัพธ์ (ภาษาอังกฤษ) 3:
Because I had to be sure that you go to study now.