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Either the ways or the time ____ yet, but you may ask the headmaster for some information.
A.isn’t decidedB.hasn’t decidedC.aren’t decided D.haven’t decided
A
考查时态及主谓一致。句意:无论方法还是时间都还没有决定。但是你可以问问校长更多的信息。根据主谓就近原则,谓语动词与time保持一致,time为抽象名词,不可数,故谓语动词用单数形式,选A。
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