—What is this?.—It’s ___ orange desk..A. a B. an C. /
— Do you like rock music? — No, not at all. I like music really gentle.
Her mother didn’t allow her _________ computer games at all.
Take more exercise every day, or you may ___________.
—______ can you cure my father, Doctor? — In about a week.
Smoking is bad ___________ health. You must give __________.