4 . 请你修改以下的每个句子，每句有1处语言错误，错误涉及一个单词的增加或修改。
增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。
修改：在错的词下面划一横线，并在横线下面写出修改后的词。
注意：每处错误及其修改仅限一词。
1. If he will be invited to the meeting is not known.
2. The professor in the end decided to give the prize to who he believed had a good command of English.
3. Indeed, body positions are part of that we call “body language”.
4. It remains to be seen if or not this idea can be put into practice.
5. She’s not the brilliant dancer that she used to.
6. One reason why Hamlet is such a successful play is because it appeals to many different people.
7. He is that you call a “walking dictionary”; he knows almost every word.
8. The news which he intended to come gave us much pleasure.