I_at home yesterday.A,am.B,was.C,his.
问题描述:
I_at home yesterday.A,am.B,was.C,his.
答
was.昨天在家.所以是过去式.
答
yesterday
过去式排除A,
I是单数用was
答
选B
因为yesterday表明,全句是过去时态