Question

He _____ without saying good-bye to them, for he always has good manners.A.

He ___ without saying good-bye to them, for he always has good manners.
A．mustn’t have left B．may not have left C．shouldn’t have left D．can’t have left

为什么选D？？ 选C 他本不该不辞而别 (却不辞而别) 有什么不对吗？？

Answer 1

选C 或 D 主要是取决于后面的强调语！由于他总是那么的彬彬有礼，所以他不可能不辞而别。

C 是他不应该不辞而别，这涉及礼貌或不礼貌的问题；如果句子是：

He ___ without saying good-bye to them, for this would be very rude of him.

那正确的答案就不能用 D 了！

Answer 2

司打印测试的操作过程