She asked me if I knew ________.

1. A.
   whose pen is it
2. B.
   whose pen it was
3. C.
   whose pen it is
4. D.
   whose pen was it

---- Whose backpack is this?

---- It be Jim’s. Look, his student’s card is in it.

　 A. must　 B. can　 C. mustn’t　 D. can’t

---Whose book is this? There is no name on it.
---Let me see. Oh, it’s          . I lost it a few days ago. 

– Whose notebook is this?

      -- It _____ Tom. I saw he used it just now.

     A. must belong to         B. can’t belong to         C. might be belonged to

—Whose sweater is this?  —It looks like John’s. Oh, yes. It’s __________.

A. her                       B. hers                     C. him            D. his