Вставить can, could, must, have to

Привет! Давай разберемся с заданиями и вставим правильные слова.

1. can - "Crocodiles can swim very fast."
2. have to - "The teacher says that students have to study hard before exams."
3. mustn't - "You mustn't smoke here. It is forbidden."
4. can - "Can I borrow your mobile? I have lost mine."
5. can - "She can speak French very well—her mother is a French teacher."
6. don't have to - "You don't have to buy this book, I have it at home."
7. can't - "You can't go for a walk until you mop the floor in your room."

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