---I think Helen is at home. ---No, sheb
题型:选择题
问题:
---I think Helen is at home.
---No, she be at home, for she phoned me from the airport just five minutes ago.
A.mustn't
B.needn't
C.can't
D.dared not
---I think Helen is at home.
---No, she be at home, for she phoned me from the airport just five minutes ago.
A.mustn't
B.needn't
C.can't
D.dared not