WE OUGHT TO TRY CLEAN OUR TEETH ...A. ONCE A DAY B. AT LEAST TWICE...
34.We ought to try clean our teeth ...
A. once a day
B. at least twice a day C. between meals
D. before breakfast.
34.We ought to try clean our teeth ...
A. once a day
B. at least twice a day C. between meals
D. before breakfast.