& Write sentences with mustn't or don't have to. 1 Today's Saturday: 1/ get up earlyI don't have to get up early2 Today's my mum's birthday:1 / forget to phone her3 I want it to be a surprise: you / tell anybody4 There's plenty of time: we/ run5 We're in the library: we i talk6 I passed all my exams: I/ retake any of them7 You can finish this work tomorrow:you do it now8 These documents are important:you lose them​

1. Today's Saturday: I don't have to get up early.
Explanation: "Don't have to" is used to express something that is not necessary or required. In this sentence, it is not necessary for me to get up early because it is Saturday.

2. Today's my mum's birthday: I mustn't forget to phone her.
Explanation: "Mustn't" is used to indicate something that is prohibited or not allowed. In this sentence, it is important for me not to forget to phone my mum on her birthday.

3. I want it to be a surprise: you mustn't tell anybody.
Explanation: "Mustn't" is used to indicate something that is prohibited or not allowed. In this sentence, it is not allowed for you to tell anybody because I want it to be a surprise.

4. There's plenty of time: we don't have to run.
Explanation: "Don't have to" is used to express something that is not necessary or required. In this sentence, it is not necessary for us to run because there is plenty of time.

5. We're in the library: we mustn't talk.
Explanation: "Mustn't" is used to indicate something that is prohibited or not allowed. In this sentence, it is not allowed for us to talk because we are in the library.

6. I passed all my exams: I don't have to retake any of them.
Explanation: "Don't have to" is used to express something that is not necessary or required. In this sentence, it is not necessary for me to retake any of my exams because I passed all of them.

7. You can finish this work tomorrow: you don't have to do it now.
Explanation: "Don't have to" is used to express something that is not necessary or required. In this sentence, it is not necessary for you to do the work now because you can finish it tomorrow.

8. These documents are important: you mustn't lose them.
Explanation: "Mustn't" is used to indicate something that is prohibited or not allowed. In this sentence, it is not allowed for you to lose the important documents.