255. The college entrance examination is drawing near and all the students are ploughing through their studies. What does the underlined part means _____.
---____ will we have to go? ---Just one mile.Keep walking.
On the opposite wall _____ one map _____ dozens of pictures.
The reason ______ his coming to China is ______ he wants to study in China.
.The children are having a good time, ______ with sand, others with toys.
It is obvious that talking about something behind others is what everyone will not ______.