人教版四年级上册英语Uint 4用心想一想课前回顾同步导学与优化训练答案

1Uint 4用心想一想课前回顾第一题答案

1. classroom  

2. room  

3. school

2Uint 4用心想一想课前回顾第二题答案

1. No, it isn't.  

2. It's on the chair.