-----,and students having returned,this college too will start out with-------effort in the work that lies before them.A

问题描述:

-----,and students having returned,this college too will start out with-------effort in the work that lies before them.A.The summer vacation is over;greatB.The summer vacation being over;renewed.C.as the summer vacation over;refreshingingD.Had the summer vacation been over;sacred.

这个句子的主句是后面的this college too will start out with ------effort in the work that lies before them.所以前面部分只是充当状语,不能是完整的句子,故having returned采用动名词作状语.and前后的结构应该...