While the police have already done a lot of investigation, much evidence ___ __A.is remaining to be confirmedB.remained to be confirmedC.is remained to be confirmedD.remains to be confirmed
网友回答
D解析考查时态。句意：虽然警方已经做了大量调查，大量证据依然有待确定。可知remain这个动作从过去到现在，还没有结束，故用一般现在时态，选D。