Fill in with ,,a" or ,,an": A. 1) Ben has got____ old bike 2) Mary was reading___ book yesterday at 10 o'clock. 3) You have made my life___ nightmare. 4) The company has___new adresa. 5) It is___ surprise that you dieln't fail the exam. 6) This is___ unexpected answer. 7) I asked him when he would come to pay us___ visit. 8) We shall go for___ walk if the weather is fine. 9) I am looking for___ supermarket, but i don't see any is this neighbourhood. 10) It's enough to say you want__ new car and you will have one.