You ___ eat all your vegetables to stay healthy., must, mustn't, Used to express necessity or obligation., must, can't, can, mustn't, She ___ speak three languages fluently., must, can, Used to say that something is impossible or that you don't have the ability., mustn't, must, can, can't, You ___ forget to do your homework. It’s important!, mustn't, can't, Give the right explanation to the word "mustn't", Used to say that something is forbidden or not allowed., Used to say that someone does not have the ability to do something., We ___ ride our bikes on the busy road. It's dangerous!, mustn't, can, I ___ find my keys anywhere! I think I lost them., can't, must, Used to indicate that someone knows how to do something; ability., must, can't, can, must't, You ___ stay up late if you have school tomorrow., can't, mustn't.

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