单句改错
每句中有1处语言错误，每处错误仅涉及一个单词的增加、删除或修改。每处错误及其修改均仅限一词。
增加：在缺词处加一个漏字符号（^），并在其下面写出该加的词。
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。
(1)They don’t visit their parents as much as they ought to visit.
(2)How beautiful picture he has drawn !
(3)My first visit was to a space station considering the most modern in space.
(4)John was studying in his room while he heard screaming.
(5)Only if you ask many different questions you acquire all the information you need to know.