根据所听的答句选择恰当的问句。
( ) 1. A. Is the black pen in the pencil-box?
B. Is this pen yours?
C. What can you see in the pencil-box?
( ) 2. A. Shall we go now?
B. Which is for me, this one or that one?
C. Excuse me, where is the post office?
( ) 3. A. Shall I show you a photo?
B. Can you play a computer game?
C. May I have your picture?
( ) 4. A. How are you?
B. Can you help me?
C. Whose is this camera?
( ) 5. A. What are you doing?
B. What's your hobby (爱好)?
C. Are you making a model plane?