—I have a ______. What should I do?—You should see a dentist.
---Would you like ___________________, Peter?---Some orange, please.
--- __________ are you so happy?--- Because it is my birthday.
---___________ do you watch TV every day? ---Two hours .
---_________ meat do you need? ---One kilo.
There is ________’b’ and __________’X’ in the word box.A. a; an B. an; an C an; a D. a; a