Match the following advice about conducting questionnaires to the appropriate statement or question. ‘Be polite when you get the person’s attention.’13/25Match the following advice about conducting questionnaires to the appropriate statement or question. ‘Be polite when you get the person’s attention.’Excuse me, madam. I wonder if I could trouble you for a moment?Really? That’s interesting.I’m doing a survey about air travel.Giải thíchChọn đáp án A.