问题 选择题 看一看，根据图意选择正确的句子。( ) 1. A. This is a tree. B. This is a chair.( ) 2. A. This is a door.B. This is a book. ( ) 3. A. This is an apple.B. This is an orange. ( ) 4. A. It's a window.B. It's an umbrella. 答案 答案：B
