1. Her brother can't play the piano.
2.Can you see the aeroplane?
3. Nadia can't fly, but she can ride a bike.
4. Thay can't sing very well.
2 задание
1. is
2. his
3. has
4. a (если честно, я не знаю, что тут, наверное так)
5. can
6. can't
Надеюсь, что помогла)