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EASY LEVEL   A / An Lesson Using A and AN   A / An Quiz Test yourself using A and AN.   A/AN/THE A Mini-Lesson + Quiz Using A, AN, and THE INTERMEDIATE LEVEL   A / An Quiz Complete the Paragraph with A and AN.   A / An or Some 1 Mini-Lesson and Quiz.   A / An or Some 2 Practice adding A or AN to this grocery list. ADVANCED LEVEL   Visit San Francisco Choose A, AN, or THE to complete this paragraph about San Francisco.