( ) 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?