单句改错（共10小题；每小题1分，满分10分）
增加：在缺词处加一个漏词符号(?)，并在此符号下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：每处错误及其修改均仅限一词。
【小题1】Do you want a friend, to who you can tell everything?
【小题2】Visitors will have difficulty find proper hotels during the national holiday.
【小题3】As a matter of fact, I’m involved in outdoors sports frequently.
【小题4】I thought it was no good persuading her to stopping smoking.
【小题5】Children should be made understand the importance of saving water.
【小题6】It was not until I came back he went off.
【小题7】People make choices base on how the products are grown or made.
【小题8】The boy preferred staying at home to go out to play.
【小题9】He failed the biology exam and that was because of he didn’t do well in it before.
【小题10】I bought one such a dictionary as you did yesterday. who---whom
网友回答
(答案→)who---whom
解析：
【小题1】who---whom 考查非限制性定语从句的关系词。此处作介词的宾语用whom；
【小题2】find---finding 考查have difficulty （in）doing sth的用法。此处in被省略，故将find改为finding；
【小题3】outdoors--- outdoor 考查名词作定语。名词作定语一般用名词的单数形式；
【小题4】stopping--- stop考查persuade的用法。这里persuade后接不定式作宾补，故用stop的形式；
【小题5】made后加to 考查被动语态的用法。此处原句改为：we should make children understand the importance of saving water.改为被动语态后需要带上to；
【小题6】he前加that 考查强调句型。此处not until I came back是被强调的部分；
【小题7】base---based 考查过去分词短语作定语。此处相当于定语从句which are based on. . .；
【小题8】go--- going考查prefer的用法，此处prefer to 中的to是介词，后接动名词；
【小题9】去掉of 考查介词的用法。此处he didn’t do well in it before.是句子，故去掉of；
【小题10】去掉one或去掉a考查代词和冠词的用法。此处去掉one是as引导的定语从句，先行词有such修饰。