问题
选择题
By the end of this year, a new library ________ in our school.
A would be completed B will have been completed
C had been completed D was being completed
答案
答案：B
考查时态。By与完成时连用，the end of this year是一个将来的时间，使用将来完成时。句意：到今年年底，一座新的图书馆在我们学校将已经被建立。