On Saturday mornings, I ______ Arabic to the children who attend my mosque. I wake up at eight o'clock and prepare my lesson as I eat breakfast. It's hard work, but the look on my students' faces when they ______ a new word is priceless.
Fill in the blanks in order.
A. taught . . . . understands
B. taught . . . . understand
C. teach . . . . understand
D. teach . . . . understood
C. teach . . . . understand