study / two hours / a night
You should study two hours a night (Modal of Advice)
get / eight hours of sleep / every night
You should get eight hours of sleep every night. (Modals of Advice)
study / before your final exams
You had better (more serious) / should study before your final exams
Don't play music in class (change to modal)
You shouldn't play music in class
Don't eat during the lesson (change to modal)
You shouldn't eat during the lesson.
wear / must / business attire / at the office
You must wear business attire at the office
Don't run in the corridor (change to modal)
You musn't run in the corridor (obligation)
If you don't want your dessert you ________ eat it.
don't have to
Doctors _______ wear a mask when they are performing surgery.
Have to / must
She ____________ to attend this class if she doesn't want to.
doesn't have to
I _______ renew my driver's license before it expires.
have got to / must
Kevin ________ to watch his little sister when his parents goes out.
Has to (necessity)
Luca couldn't go to the game because he _______ study.
had to (past neccesity)
That woman could have been Jun's grandmother. She passed away last month. (find the error)
That woman COULDN'T have been Jun's grandmother. She passed away last month.
Layla couldn't go out last night because she ________ for her English exam.
had to
- I am so tired. - You _________ a nap before we left.
should have taken
