根据情景，选择正确的句子。1.想知道Mum在哪里，你可以说：____[ ]A. Where's he?
B. Where's she?
C. Where's Mum?2.别人问你的事情如果你不知道，你可以说：_[ ]A. He's in the study.
B. Sorry, I don't know.
C. She's in the kitchen.3.你找不到你的小刀了，你想问别人在哪里，可以说：_[ ]A. Where's he?
B. Where's she?
C. Where's it?4.照相机在冰箱上，你可以说：____[ ]A. It's on the fridge.
B. Sorry, I don'tknow.
C. It's in the fridge.1. C2. B3. C4. A