Questions 11～14 are based on the following conversation. How did Bill know Jim Tomas A: They once studied together. B: They once lived together. C: They once worked together. D: They once traveled together.

Listen to the recording once and answer the two questions below. Choose the best answer from the three choices marked a, b, and c. Who is Paula Kahumbu?

Questions 17-20 are based on the following conversation. You now have 20 seconds to read the questions 17-20. Which statement is NOT true A: "Susan’s Kitchen’ was furnished prettily. B: Joe is Susan’s husband. C: Lucy once met Joe at Bradshow’s garage. D: None of the above.

同时: all at once|all once|at all once|at once

The manager ordered the work ______. A: start at once B: to be started at once C: to start at once D: at once started

He ordered the work (). A: started at once B: to be started at once C: to start at once D: at once start

The phrase "once in a blue moon" in last line refers to______. A: all at once B: once for a long time C: once in a while D: once and for all

The four types of questions that are easiest for respondents to answer are yes-or-no questions, multiple-choice questions, open questions, questions with a ranking scale.

Questions 12 to 15 are based on the conversation you have just heard. 15题选（）. A: She stood motionless in shock B: She cried bitterly C: She called the police at once D: She shouted for help

Once work has been assigned, which of the following should NOT be done? A: Establishing mini-milestones B: Requesting frequent status report C: Raising follow-up questions after status report D: Skipping an opportunity to provide positive feedback