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must, mustn't, and needn't

Complete the sentences. Use the present perfect form of the verbs in brackets.

Teachers ___wear suits for work, but their clothes must be neat and clean.score Student ___suse their mobile phones during the lessons.score You ___arrive on time for lessons. It's important not to be late.score You ___eat lunch in the school canteen. Some students prefer to go home for lunch.score Students and teachers ___be polite to each other.score You ___buy a coursebook, your teacher will give you one.score You ___eat or drink in any of the classrooms.score Students ___take an exam at the end of the year.
This shows how much they have learnt.score
Huy Thắng Nguyễn
17 tháng 10 2017 lúc 17:04

must, mustn't, and needn't

Complete the sentences. Use the present perfect form of the verbs in brackets.

Teachers _needn't__wear suits for work, but their clothes must be neat and clean.score Students _mustn't__use their mobile phones during the lessons.score You _must__arrive on time for lessons. It's important not to be late.score You _needn't__eat lunch in the school canteen. Some students prefer to go home for lunch.score Students and teachers _must__be polite to each other.score You _needn't__buy a coursebook, your teacher will give you one.score You _mustn't__eat or drink in any of the classrooms.score Students _must_take an exam at the end of the year.
This shows how much they have learnt.score
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