Requires QuickTime.
Practice AのBにCがいる with video
Video 1
	Watch video 1 over and over until you feel you have memorized what they are saying. The subtitle is given for your convenience.
Video 2
	When you feel comfortable with the dialogue, use this video which has no subtitles to assist you.
Video 3
	When you are extremely comfortable with video 2, use video 3 to practice. Video 3 doesn't have any subtitles nor dialogue.