1)an , a ,
2)а ,an
3)an, a
4)an, a !
т.е . если следующее слово начинается на гласную , то предлог должен кончатся на согласную . А если слово после предлога начинается на согласную ,то тогда пишем просто :a
1. A: Have you seen ? B: I haven't told
2. A: Why don't you smell the cheese? B: It smells
3. A:Where are you going? B: Do you need?
4. A: You are looking tired B: I have been working
5. A: Where did Tony live? B: has been staying
6. A: How long have you been waiting ? B: I have been being
1) watch TV 2) walk a dog 3) play computer 4) have fun 5) cook 6) to go roller skating 7) to ski 8) do the shopping