10 years ago，______ only one classroom building in our school. And in 10 years，______ five classroom buildings in our school.
A.there will be, there are
B.there was, there will be
C.there will be; there was
D.there was, there are
网友回答
B解析根据第一空前的时间状语，可知第一空为there be 的一般过去时将AC排除，再根据后文的时间状语in+一段时间，故用一般将来时，故选B