21. __ they __ (read) magazines? Yes, they are.

22. __ you __ (learn) English? Yes I am.

23. __ Helen __ (write) a letter? No, she isn´t.

24. __ Sarah __ (play) the guitar? Yes, she is.

25. We __ (not play) basketball.

B.

А почему N не удваивается

Are they reading magazine? Are you learning english? Is Helen writting a letter?Is Sarah playing the guitar? We aren't playing basketball