... o A or An? The general rule is that we use a before a consonant and an before a vowel: a bowl, a car,a dog, but... an ant, an elephant, an insect, an orange, an urn But, what is important here ... a group. The woman.The man.The door.The doors. Prior Reference We often use the after the noun has already been mentioned. For example: An Englishman, an Irishman and a Sctosman walk into a pub. ... Jane ( play ) ………………..the piano at present . 1 27 . He ( visit ) …………………..his grandparents next week . 128 . Jane ( play ) ……………………..the piano at present . 129 . We ( not invite ) ………………....many...