---Look at the sign on t
he right, What does it mean ?
---Oh, it means that smoking _______ here
A．wasn’t allowed B．hasn’t allowed
C．isn’t allowed D．Won’t allowed
— Do you know who this magazine belongs to ?
—Let me see. Oh, it’s ________
A .mine B. me C. my D. I
—Do you like your math teacher?
—Sure, because he is the teacher ___ helps me a lot.
A. whose B. whom C. which D. Who
---How do you learn English so well ?
---_______ chatting with my uncle in the USA.
A. for B. By C. In D. With
— Look! That’s Amy.
— It _______ be her. She’s 
gone to Xi’an.
A. must B. can C. may D. can’t
