一个英语问题

Now _____your turn to keep guard.A.there is B.is going C.comes D.has come答案：ＣＷＨＹ？

热心网友

　　这是一个倒装句呀，当副词there,here,then,now等位于句首，且谓语动词为be,come,go等时，句子应全倒装．例如：　　Here comes the bus.　　There goes the bell.　　所以答案正确

热心网友

Now comes your turn to keep guard. 副词now提前句子倒装，意思是现在轮到你站岗了。同样的句子如：Here comes the bus.公共汽车来了。

热心网友

省略了 it ,Now it comes your turn to keep guard.