Choose the correct modals: must, mustn’t, needn’t:
1) His English is not good, he … study better.2) You … write on book pages!3) We … get up early on Sundays .4) You ... be rude to your parents.5) You ... do their homework on time.6) You ……. take a coat. It’s warm outside.7) You … run in the corridors!8) Her French is not good enough, she … study better.9) I … get up early at weekends.10) You ... be polite to your parents.11) You ……. take an umbrella. It’s not going to rain. 12) You ... eat enough vegetables and fruit to be healthy.