교재오류 정정

p.2

a essay를 an essay로 수정

p.7

두번째 단락 세번째~네번째 문장 수정 

School and lesson fees are already expensive, so it helps to not spend more money on clothes.

→ School and lesson fees are already expensive, so it is helpful to save money on clothes. 

p.11

Lastly, uniforms makes all ~ → make로 수정