By the end of next July this building____

By the end of next July this building____
a.will have been completed b.will be completed
c.has been completed
选A,为什么呢?by the end of和什么时态连用呢?有类似的相关短语么?

因为这里是将来完成时态.
by the end of +过去的时间,句子一般采用过去完成时
eg:we had planted more than 500 trees by the end of last month.
by the end of +将来的时间,句子一般采用将来完成时
eg:i will have finished reading the book by the end of next month.

如以上回答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！

点此我要举报以上问答信息