1.Hello!I-Tina's sister.2.Five oranges -in the case.3.Tom an

1.Hello!I_Tina's sister.2.Five oranges _in the case.3.Tom and Mike_11.4.This _Helen's uncle.And those_her cousins.5.-_your grandparent64?-Yes.6-How_your brothers?-Bob_OK,but Bill is not fine.根据句意,用正确的be动词填空