She ___ on her way to school,I just phoned her home and no one answered mea、should beb、must have beenc、must have rainedd、had to rain

问题描述:

She ___ on her way to school,I just phoned her home and no one answered me
a、should be
b、must have been
c、must have rained
d、had to rain

B
假设句型

A

b
她刚刚一定在去学校的路上