感叹句倒装&虚拟语气-----英语语法题2道?1.______ to our work!A.how important a device it is C.How important device it is 选A,可是,device 和it 不重复么?device是可数名词么?

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感叹句倒装&虚拟语气-----英语语法题2道?1.______ to our work!A.how important a device it is C.How important device it is 选A,可是,device 和it 不重复么?device是可数名词么?

感叹句倒装&虚拟语气-----英语语法题2道?1.______ to our work!A.how important a device it is C.How important device it is 选A,可是,device 和it 不重复么?device是可数名词么?
感叹句倒装&虚拟语气-----英语语法题2道?
1.______ to our work!A.how important a device it is C.How important device it is 选A,可是,device 和it 不重复么?device是可数名词么?

感叹句倒装&虚拟语气-----英语语法题2道?1.______ to our work!A.how important a device it is C.How important device it is 选A,可是,device 和it 不重复么?device是可数名词么?
1、只能选A.it是主语,而device在句中作表语.不是成分重复.2、选C.只是混合条件句.从句表示的是与过去相反的事实,因此用过去完成时.