用括号内所给单词的正确形式填空,让句子完整、准确.______(be)you at school yesterday?

问题描述:

用括号内所给单词的正确形式填空,让句子完整、准确.______(be)you at school yesterday?
注明为什么.

Were
yesterday 昨天,be 的过去式是 was,were
you 用 were