Complete the sentences with the verbs from the box.
Can/ can't/ may/ may not/ must/ mustn't/

1) It's very not.You ___ water the flowers.
2) Nick _____ play chess very well.
3) ________ I go for a walk? - No, you _______.Where is your homework?
4) You ______ swim here. The water isn't clean.
5) Soory, I ______ help you now.
6) It's raining. I _______ take my umbrella.