Ex. 1 Укажите номер предложений, при переводе которых на английский язык следует употреблять глаголы a) can; b) may;

1. He can swim. 2. You can go to a lecture. 3. You may take this book. 4. Can you pick up this box? 5. They must be here at 5 o\'clock. 6. He can read English. 7. May I come in? 8. Mustn\'t he go there? 9. Who can prepare the report? 10. Can you help me?