根据下列句子及所给汉语注释，在相应的横线上写出各单词的正确形式。
小题1:It is good manners to _______ (问候) each other with a smile.
小题2:Since the exam is _______ (靠近)， all the students are busy with lessons.
小题3:You can see _______ (各种各样的) kinds of animas in the preserve.
小题4:Do you know the _______ (长度) of the river?
小题5:They finally gained _______ (允许进入) to the party.
小题6:The soldiers _______ (摆动)their arms at the same pace as they marched.
小题7:Only a _______ (少数) of the students were for his opinion.
小题8:Who is to _______ (代表) our school to attend the conference?
小题9:_______（成年人）should set good examples to children.
小题10:In such weather, I prefer to stay in my _______ (宿舍), reading novels.
小题11:Don’t be too _______ (好奇的) about others’ personal affairs.
小题12:In most cases he had great courage to _______ (克服) difficulties.
小题13:_______ (旅游业) in our city is developing very fast.
小题14:We should take his health into _______ (考虑).
小题15:On no _______ (场合)can we behave like that.