Choose the correct answer A, B or C.
1 You _____buy the tickets online – it's cheaper.
A have B should C might
2 It's Sunday, so Maria _____to get up early.
A can't B mustn't C doesn't have
3 Mum,_____ I stay at Jenny's tonight, please?
A can B must C should
4 You _____send text messages during the lesson!
A mustn't B don't have to C might not
5 I____find out what time the castle opens. Can you
help me?
| A shouldn't B mustn't C can't
6 The weather_____ be really good tomorrow, I think.
A must B should C can​