NGA BRUSHES HER TEETH THREE TIMES A DAY.A. HOW LONG DOES NGA BRUSH...
20. Nga brushes her teeth three times a day.
A. How long does Nga brush her teeth ?
B. How often does Nga brush her teeth ?
C. How long does Nga brush her teeth ?
D. How does Nga brush her teeth ?
VI. Choose the best sentence ( A,B,C or D) for the mixing words (0,8m)