单选题 Speaker A: I wonder if Ann will come. It' s 8:30 now and she was supposed to come at 8: 00. Speaker
B:______

• A. She assured me she would start at 7: 30. Maybe she had been held up by the traffic.
• B. You shouldn' t be wondering. I believe she won' t come.
• C. Don' t worry. Let ' s wait here until she comes.
• D. Yes. I do agree with you.