На завтра. ex 1. make questoins and give negative answers. 1.kate can speak english well. 2.you may take my book. 3.bill must learn the words. 4.i must help my mother. 5.you my try this sweather on. 6.my brothers can swim. ex 2. write the sentences in plural. 1.this man is a doctor. 2.that woman is my sister. 3.this cild in my son. 4. i'm a student. i've got a new uniform.
5.there is a scarf on the chair. 6. this is my sweater. 7.in that girl your sister? 8.that coat in new.

вправа 1)

1.can kate speak english well? no, she cant

2.may i take your book? no, you can't

3.must bill learn the words? no, he mustn't

4.must i help my mother? no, you mustn't

5.may i try this sweather? no, you may not

6.can my brother swim? no, he cant

вправа 2)

1.these men are doctors

2.these women are my sisters

3.these children are my sons

4.we are students. we have a new uniform

5.there are scarfs on the chairs

6.these are my  sweaters

7.are these girls your sisters?

8.these coats are new

ex.1

1.can kate speak eng. well? no, she cant

2.may i take your book? no, you may not (can't)

3.must bill learn the words? no, he mustn't

4.must i help my mother? no, you mustn't

5.may i try this sweather? no, you may not

6.can my brother swim? no, he cant

ex.2

1.these men are doctors

2.these women are my sisters

3.these children are my sons

4.we are students. we have a new uniform

5.there are scarfs on the chair

6.these are my  sweaters

7.are these girls your sisters?

8.these coats are new

1. what problems are becoming more and more important today? 2. are trees and plants very important for us? 3. is it possible to support public transportation or not? 4. in what parts  of the world are trees cut down by people? 5. who can help to stop  factories from wasting and polluting water? 6. could governments  stop  water companies from wasting millions of litres of water  by  reparing pipes? 7. have many  cities  successfully saved water by reparing pipes? 8. how can people reuse water? 9. is w ater pollution as dangerous as air pollution? 10. people all over the world discuss environmental protection, don't they?