---Where ______ you yesterday morning?
---I ______ at my uncle's home.
A:were; was
B:was; were
C:are; am
学习明、清史后,有四位同学分别就下列主题作了演讲,你认为其中最能概括这段历史全过程的是( )
Electricity is like water, . It flows from the wire to our homes.