3. complete the sentences. use mustn’t or needn’t + one of these verbs: clean, forget, hurry, lose, wait, write 1) the windows aren’t very dirty. you them. 2) we have a lot of time. we . 3) keep these documents in a safe place. you them. 4) i’m not ready yet but you for me. you can go now and i’ll come later. 5) we to turn off the lights before we leave. 6) i the letter now, i can do it tomorrow.

1) The windows aren’t very dirty. You needn’t clean them.
2) We have a lot of time. We needn’t hurry.
3) Keep these documents in a safe place. You mustn’t lose them.
4) I’m not ready yet but you needn’t wait for me. You can go now and I’ll come later.
5) We mustn’t forget to turn off the lights before we leave.
6) I needn’t write the letter now, I can do it tomorrow.

1, needn't clean.
2. needn't hurry.
3. mustn't lose.
4. needn't wait.
5. mustn't forget.
6. needn't write.