I'mafraidwe'llhavetoworkextrahoursfortherearestillsome...

問題詳情：

 I'm afraid we'll have to work extra hours for there are still some problems ______.

A. remaining to settle                                          B. remaining to be settled

C. remained to be settled                                    D. to remain to settle

【回答】

B

知識點：非謂語動詞

題型：選擇題