Unit2 This is my sister.单元练习 一、单项选择（共 15 小题；共 15 分） 1. is a tall tree. It's near. But bird is in the sky. It's far.A. This; thisB. This; thatC. That; thatD. That; this 2. --- Are your keys?--- Yes, they are. They're .A. this; myB. that; mineC. these; myD. those;...
