单词拼写（共5小题；每小题1分，满分5分）
根据下列句子所给汉语意思，写出空缺处各单词的正确形式。
He _________(讨价还价) over the price of the meat with the shopkeeper.
Competition from abroad has become _______(凶猛的) than it was in the 1980s.  
________(就个人而言)speaking, I prefer the second one.   
This flower ________(属于)to my sister is very beautiful.
We found further scientific ________(证据) for this theory.