问题标题：
【I'mafraidwe'llhavetoworkextrahoursfortherearestillsomeproblems________.A.remainingtosettleB.remainingtobesettledC.remainedtobesettledD.toremaintosettle】
问题描述：
I'mafraidwe'llhavetoworkextrahoursfortherearestillsomeproblems________.
A.remainingtosettleB.remainingtobesettled
C.remainedtobesettledD.toremaintosettle
何启海回答：
答案是B
B==waitingtobesolved.
remain是不及物动词,没有被动语态形式.settle是及物动词,後面没有宾语时,就必须是被动语态形式.
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