题目内容：

（共5小题，每小题1分，满分5分）

根据对话情景和内容，从对话后方框所给的选项中选出能填入每一空白处的最佳选项

—Oh，madam.　1　

—I'm sorry to say the bill you sent me was incorrect.

—Incorrect，madam？　2　

—Yes，I know.　3　

—Really，madam？I find it very hard to believe.

—　4　

—Ah.Well，I must apologize，madam.It's the new computer.

—Well，don't you think it's about time you got it working properly？It's most inconvenient.

—I agree entirely.I'm very sorry about it.　5　

A. Could you help me？

B. That's very strange.

C. What can I do for you？

D. And what's more，this isn't the first time.

E. But I think this is the first time.

F. I promise you it won't happen again.

G. Look，it's happened five or six times in the past three months.