根据句意及汉语提示完成单词
【小题1】The students are doing their homework __________（安静地）.
【小题2】It’s very __________（危险的）to stand like that.
【小题3】Living in such a beautiful village must be very __________（放松的）.
【小题4】Every year, millions of __________（参观者）will go to that village.
【小题5】My best friend Mary is a __________（有礼貌的）girl. She always says hello to everyone.
【小题6】Daming’s dream（梦想）is to travel to some __________（外国的）countries.
【小题7】It’s a __________（私人的）letter. You can’t open it.