Write must or mustn't and the appropriate expressions: be very careful, tell anybody, do his homework every day, wear her glasses, go for a walk today, put
on your coat, go to bed very late, train hard every day, get up so late, switch on
the light.
he is taking her little children to the 200. She must be very careful.
He is ill. He
It is very cold. You
They want to win the championship. They
She is always late for work. She
le is very sleepy all day. He
he baby is sleeping. We
's a secret. You
le can't see well. She
has a lot of bad marks at school. He​

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