I _____(be)12 years old last year.用所给词的适当形式填空.

I _____(be)12 years old last year.用所给词的适当形式填空.
I _____(be)12 years old last year.
用所给词的适当形式填空.

I _____(be)12 years old last year.用所给词的适当形式填空.
were

was .因last year用动词过去时态

were