Поставьте вместо точек нужный по смыслу модальный глагол:

1. Let us ask mother. She ... know his address. 2. You ... drink cold water if you don’t want to fall ill. 3. ... you help me? — I am afraid not. 4. You ... interrupt me when I am speaking. 5. Pupils ... talk during the lesson. 6. It ... rain, take your raincoat. 7. My father ... be at his office now as it is 8 o’clock already. 8. ... I switch on the radio? — Yes, you ... . 9. ... I smoke here? — No, you ... . 10. You ... take my pencil for a moment. 11. I ... finish this work today. I am tired.