You’re not allowed to use your phone on a plane. (mustn’t) - You mustn’t use your phone on a plane., It’s a good idea to brush your teeth after every meal. (should) - You should brush your teeth after every meal., The car is clean. (have) - You don’t have to clean your car., It’s not obligatory to have the latest technology. (don’t) - 3.You don’t have to have the latest technology., It’s illegal to drive faster than the speed limit. (mustn’t) - You mustn’t drive faster than the speed limit. (, It’s not a good idea to listen to music at high volumes. (shouldn’t) - You shouldn’t listen to music music at high volumes.,

Think 1 Unit 7 Modal verbs

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