問題詳情：
![It'snecessarytobepreparedforajobinterview.]( "It'snecessarytobepreparedforajobinterview.")
It's necessary to be prepared for a job interview.________________________________________________________________________
the answers ready will be of great help.
A．To have had B．Having had
C．Have D．Having
【回答】
D [句意：有必要為求職面試做好準備。準備好(如何)答覆對你會很有幫助。Having the answers ready在句中作主語。 ]
知識點：非謂語動詞
題型：選擇題
