1.We ... drop litter un the streets a)can b) mustn't там ёщё есть(

We mustn't drop litter on the streets.

ответы 

1-d

2-b

3-a

4-b

5- c

andrew he?

our students , don't they?

girls ,can't they?

roma ,is he?

we will we?

my friend can play computer games,can't he

group of russian students will visit great britain in april,won't they

we went to the park yesterday,didn't we

our head teacher answers for educational program ,doesn't she

i am going to the cinema  

1c

2a

3c

4c

5b

6b

7b,c

8c

9b

10c

11b

12b

13c

14d

15c

16a

17b

18d

19d

20c

21c