—Iwasreallyanxiousaboutyou.—I’mterriblysorry.I

問題詳情：

—I was really anxious about you.

—I’m terribly sorry.I________home without a word.

A．mustn’t leave                                          B．shouldn’t have left

C．could have left                                         D．need have left

【回答】

*：　B

shouldn’t have done句意為“本不應該做而事實上做了”。

知識點：虛擬語氣與情態動詞

題型：選擇題