一、选择填空.　　（ ）1. mouth is big. a monster.A. It’s, Its B. Its,It’s C. its, It’s　　（ ）2.Listen！ What you ? -I can hear a cat.A. can, look B. is, listen C. can , hear　　（ ）3. ? -I can’t my bag.A. What is it? B. What’s the m