we should clean () twice a day c.teeth d.our teeth
we should clean () twice a day c.teeth d.our teeth
we should clean( )twice day A our tooth B our tooths C teeth
we,brush,a,twice,teeth,should,our,day(连词成句)
We must clean our teeth twice a day.改为被动语态
We should brush our teeth twice every day.对划线部分提问(twice ever
My brother should brush teeth twice a day(.twice划线)
you should brush your teeth (twice) a day.提问
You should brush your teeth twice a day.对brush your teeth
You should (brush your teeth) twice a day(括号部分提问)
We should clean ___ twice a day.
Tom b_____ his teeth twice a day.
I brush my teeth twice a day