用所给词的适当形式填空。每词限用一次
he, have, be, she, this
【小题1】— Is Grace your mother?
— Yes, ________ is.
【小题2】— ________ a good time, Tom!
— Thanks.
【小题3】Who ________ the girls?
【小题4】Look at that boy. ________ name is John.
【小题5】Are ________ your brothers?