单项选择题


In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on your answer sheet.
Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions.

Before
set up his pizza delivery service, he

A.tested samples on potential clients.
B.handed out product questionnaires.
C.assessed demand in different areas.
D.trained staff for a few months.