--What kind of ________ makes 3G cellphones so popular with the young? --Video communication, I think.

Never judge a man by his _____ alone — you might be fooled by what he looks like. 

 Arriving home，the boy told his parents about all the________which occurred in his dormitory.

The _____ of his clothes indicated too clearly that he had been playing football.

There are ten＿＿＿teachers and two hundred＿＿＿students in the school．