Fill in the missing modal verbs:
1) You … go out today. It’s too cold.
2) … I take your fountain-pen? – Do, please.
3) We… not carry the bookcase upstairs. It’s too heavy.
4) When … you come to see us? – I … come only tomorrow.
5) Shall I write a letter to him? – No, you … it is not necessary.
6) Marry … finish the work at once.
7) … you cut something without a knife?
8) Peter … return the book to the library. We all want to read it.
9) Why … not you understand it? It so easy.
10) … we do the exercise at once?
11) … you pronounce this sound?