单选题
A. Three weeks ago. B. Last month. C. Last week. D. Last Monday.
【正确答案】
C
【答案解析】[听力原文] M: Hi, Alice, It's Jim speaking. W: Hi, Jim. What's up? M: I'm calling about the machines. Have you installed them? W: Yes. We finished installing them last week. M: When will you start testing the machine? W: Next Monday. M: How long will it take? W: About three weeks. M: Good! Keep us informed. W: We will. Bye!
When did they finish installing the machines?
该题为具体细节题。从对话中女士的回答我们可以知道，他们是上周完成安装的。
单选题
A. Install more machines. B. Test the machines. C. Buy more machines. D. Sell the machines.
【正确答案】
B
【答案解析】[听力原文] What are they going to do next?
该题为推理判断题。根据对话中“When will you start testing the machines?”可知，下一步的工作是测试机器(test the machine)。