You________ let the children play in the street. It’s too dangerous. A. should B. shouldn’t C. must
I love fish very much, and I try to eat _______ once a week.
My brother likes fruit a lot and he eats it three ________ four times every week.
---Do you often ________ English books?---Of course.
My legs were ________ tired ________ I wanted to stop.
---There is ________ milk in the fridge. Please buy some on your way home. ---All right.