It’s snowing heavily, so there is a lot of snow all ______ the ground.

 ---Boys, don’t swim in the Fengcheng River!---Why not? Isn’t it deep enough _____?

The students are going to raise some money           the poor            the afternoon of May 21st.

Which is the way _____ the post office?

----Which is your teacher? ----The one ________ thick glasses over his eyes is.