一、单项选择（30分）
1.Can you stay here for a few days longer?
___________,but I have to go back tomorrow.
A. No problem
B.I’m afrraid not
C.I’d love to
D.No ,thank you
2.Henny _________ be at home now because he phoned me from the school just now .
A.mustn’t
B. isn’t he able to
C.may not
D.can’t
