A or An

Do you know when to use 'a' or 'an'? Look at the pictures and fill in the gaps. Once you have gone through the first exercise, go to the drop-down box exercise and select the correct answer to complete the sentence. Submit your answers to see how many you got right!

Screen shot: 
Category: 
Level: 
Elementary
Overall Design: 
Good
Graphic Presentation: 
Good
Video Presentation: 
Good
Audio Presentation: 
N/A
Instructions: 
Standard
Learning Objectives: 
Standard
Assessment Method: 
Standard
Learning Styles: 
Good
Interactivity: 
N/A
Learn/Remember/Recall: 
Standard
Final rating: 
70