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№4. измените предложения в соответствии с данным примером.
e.g you must come at 9 o’clock. (the classes begin at 10 o’clock)
you needn’t come at 9 o’clock as the classes begin at 10.
1. you must speak louder. (i hear you quite well)
2. he must hurry if he wants to catch the train. (he has plenty of time)
3. i must stay at home tonight. (nobody is going to call on me)
4. you must buy this dictionary. (you can borrow it from the library)
5. you must wait for your friend. (you’ll ring him up in the evening)
6. you must help your brother. (he is old enough to do it)
7. you must baby sit tonight. (the parents are staying at home)
8. she must go to the clinic at once. (the doctor is coming here)
9. you must post the letter at once. (i’m going past the post – office)
2.He needn’t hurry if as he has plenty of time
3.I needn’t stay at home tonight as nobody is going to call on me
4. You needn’t buy this dictionary as you can borrow it from the library
5.You needn’t wait for your friend as you will ring him up in the evening
6.You needn’t help your brother as he is old enough to do it
7. You needn’t baby sit tonight as the parents are staying at home
8.She needn’t go to the clinic at once as the doctor is coming here
9. You needn’t post the letter at once as I’m going past the post office