The Sentence

A teacher said:
"Mary, I'd like you to give me a sentence beginning with 'I', please." 
Mary thought for a few seconds and then said:
"I is..." 
The teacher interrupted her and said:
"No Mary, you cannot begin a sentence with 'I is' - you must use 'I am'." 
Mary looked upset and said:
"But Miss..." 
The teacher shouted:
"Give me a sentence beginning with 'I am',
Mary shrugged her shoulders and said:
"I am the ninth letter of the alphabet."

Spune si altora: