과천중앙고등학교(과천중앙고) 영어 시험분석: must not과 do not have to 구별하기

1A community workshop welcomes visitors who want to repair small wooden objects. Everyone must wear safety glasses while using tools. Visitors must not use a cutting tool without the instructor's permission.

2Visitors do not have to bring their own tools because the workshop provides them. They may bring a small wooden object to repair, but bringing one is optional. Practice pieces are available for people who arrive without an object.

3At the end, visitors must return borrowed tools to the marked shelf. They do not have to finish their repair in one visit. A partly repaired object can be collected and worked on during a later session.