Complete each of the following sentences with a (compound) word derived from the one(s) given in brackets.
When he reached home, he found his family sitting in the living-room（ ） ,staring at one another.(speech)
【正确答案】：SPEECHLESS
【题目解析】：
当他回到家，他发现他的家人坐在起居室里没人说话，互相凝视。speechless不说话的，形容词。
