1 . 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. After that I poured oil into a pan and turned off the stove, I waited patiently unless the oil was hot.
2. First I cut the tomatoes into pieces but put them aside.
3. Actually, I start to learn kung fu when I was seven years old, for I have long been out of practice.