Esercizio di grammatica inglese on-line per studenti di livello elementare. Metti l'articolo indefinito corretto.
1) John has _______________ old bike.
2) She's cooking _______________ cake.
3) Can I have _______________ apple?
4) Emily needs _______________ new desk in her room.
5) Susan has _______________ aunt in London.
6) We are listening to _______________ English CD.