he walked so fast that i couldnot follow him(改为简单句)

he walked so fast that i couldnot follow him(改为简单句) 同义句转换 He walked so fast that I couldn't follow him.He walked He runs so fast that i can't follow him(改为同义句) He runs _ _ _ He runs so fast that nobady can catch up with him.(改为简单句） 翻译：He walked so fast that I could hardly keep up with him. he speaks english so fast that we can not follow him同义句转换 He walked very fast,and I could (一个H开头的单词)follow him. He spoke so quickly that i can't follow him的同义句是? he runs so fast i can't catch up with him.（改为同义句） he runs so fast that l can't follow him= 同义句改写：用一个简单句替换 Some boys walked so fast that the girls could he is a fast speaker,so it's not easy to follow him.为什么用fast