Ответ учителя:

1. gives. Who often gives a helping hand to his classmates?
2. were cleaning. When the children were cleaning the park?
3. will be discussing. Why all the pupils will be discussing teenagers’ problems?
4. i am writing. What are you writing now?
5.  will be. Where she will be?
IV
1. Last Sunday the teacher took his pupils to the forest.
Last Sunday the teacher didn't take his pupils to the forest.
2. The birds are eating the bread now.
 The birds aren't eating the bread now.
3.They just leave the city.
They don't just leave the city.
4. I was preparing for the competition at 6 o'clock yesterday.
I wasn't preparing for the competition at 6 o'clock yesterday.
5. My sister goes to the dentist every year.
My sister doesn't goes to the dentist every year.

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