‘His essays are copied off the Internet.’ ‘He................. do that. That’s called plagiarism.’
shouldn't/musn't/can't
‘I forgot we had a biology test today.’ ‘You ...............check the timetable next time.’
should/ought to/'d better
‘I have to do an assignment on Romeo and Juliet, but I haven’t read it yet.’ ‘Well, you................ to start now if you want to get a good mark.’
have/ ought
‘She’s going to do business studies when she finishes school.’ ‘I don’t think she .................., she doesn’t like maths.’
should/ought to
Like in my old school, attendance is important and we ..............be late – when we are, we ................. bring a note from home the next day.
1) mustn't/can't 2) have to/must
You ................be at least 18 to drive a car.
must/have to
The amazing thing is that we ................. use mobile phones in class – but only with the teacher’s permission.
can
Of course, we ............... use mobile phones to text each other or surf the web at school..
mustn't/can't
I’m not sure if we .................... wear make-up at my new school.
can
‘Do you know much about psychology?’ ‘I don’t, but you ...................ask Tom’s father, he’s a university professor.’
should/ought to/'d better
I have just started a new school. The rules are a bit different from my old school. For example here we .................wear a uniform, which is great because I dislike them, but we ............... wear shorts or things like that.
1) don't have to wear 2) can't/mustn't
My computer has crashed again! Can you fix it?’ ‘Well, I can try, but you’d ..............ask a computer technician.’
better