【小题1】The book isnt mine. It belongs to him (he).【小题2】Everyone should treat the disabled w

【小题1】The book isn't mine. It belongs to him (he).
【小题2】Everyone should treat the disabled with kindness (kind).
【小题3】The people in London are busy preparing for the thirtieth (thirty) Olympic Games.
【小题4】All the teachers devote most of their time to educating (educate) the children.
【小题5】It’s the most meaningful (meaning) experience I have ever had. I’ll never forget it.
【小题6】All of them dress up in new clothes on Children's (child) Day.
【小题7】His sudden death (die) made his friends very sad.
【小题8】It's incorrect (correct) to hunt or fish in nature reserves.
【小题9】The students have no choice but to do (do) the endless homework every day.
【小题10】I’m truly (true) sorry about it. I won’t do it again.

解析：【小题1】belong to sb 表示属于某人，后接人称代词宾格形式，故用him【小题2】With为介词，后接名词的适当形式。【小题3】由本题的意思，可知用序数词。【小题4】Devote···to doing sth，故选educating。【小题5】本题根据句子意思，可知答案为形容词的最高级，故选答案为most meaningful【小题6】本题要用名词所有格，来表示Children’s Day，【小题7】本题缺少的是名词，作为主语。【小题8】根据后文的内容hunt or fish in nature reserves.可知答案为death。【小题9】have nothing to do，为固定词组搭配。【小题10】修饰形容词sorry的词应该为副词，故选truly

我也是这个答案