题目

听对话，回答问题。 （1） What time will the speakers set out? A . At 8:45. B . At9:15. C . At 9:30. （2） How many people will go for the shopping trip? A . 2. B . 3. C . 4. （3） What does the man expect the woman to do? A . Give him a ride. B . Bring some food. C . Buy a bathing suit. 答案：C C B在△ABC中，∠A=40°，当∠B=                 时，△ABC是等腰三角形。