Решение:
- I haven't got any money. I must go to the bank. (Необходимость, обязанность).
- She can't see very well so she wears glasses. (Невозможность или неспособность).
- You mustn't talk during the exam. (Строгий запрет).
- I like getting up late at weekends. (Предлог времени для выходных).
- Look for your shoes under the bed. (Предлог места: под кроватью).
Ответ: must; can't; mustn't; at; under.