Beautiful expression: The selected sentences are all beautiful sentences that meet the expression ability of elementary school students. 

Clear classification: Classifying benchmark writing topics allows students to accumulate and apply knowledge at the same time. 

Comprehensive content: covering common exam topics for primary school students' English writing. 

Sample essay appreciation: Each topic is accompanied by sample essays to enhance children's ability to express themselves in writing. 

Audio accompaniment reading: Each sentence has audio accompaniment reading, so that children no longer have listening and reading troubles.