Everythingisoutoforder. Theroom

問題詳情：

 Everything is out of order.  The room ____.

't have been broken into                                  B. might's have been broken into

C. needn't have been broken into                              D. must have been broken into

【回答】

D

知識點：虛擬語氣與情態動詞

題型：選擇題