(UNIT 24) Necessity: Have to, Don’t Have to, Mustn’t

Sentences	Vocabulary
I have to take a test next week.
Students must take a three-credit history course.	Must : [Auxiliary verb] (필요성, 중요성을 나타내어) …해야 하다
I have a psychology class.
I have to read 50 pages for my psychology class.
Last week I had to buy a lot of books for school.
I don’t have to sit in the same seat every day. I can sit wherever I want.
He doesn’t have to wear a suit to work. He can wear slacks and a shirt.	Wear : [Verb] (옷, 모자, 장갑, 신발, 장신구 등을) 입고 [쓰고/끼고/신고/착용하고] 있다
You must not take scissors on a plane.
Children, you mustn’t cross the street when the signal is red.	Mustn’t : must not의 단축형 Cross : [Noun] X 표, + 기호, 십자