请问像he is running这类句子中现在分词做什么成分

请问像he is running这类句子中现在分词做什么成分 He is running very fast改复数形式的句子 He is s____about running?怎样翻译整个句子？ he is running 填什么 Bill is a great running star.He is very well.中,running为什么要用running? he is good at running?怎么提问 He is running quickly.(改为感叹句） he is running是主系表结构吗 he is running the 100 metres Look!There he (come).He is running to us. he is good at running.he runs f-- 的填词 He said that he dropped his bag when he ______ for the bus.A.was runing B.was runningC.were runningD.is running请问选哪个啊? He liked swimming better than running.英语解释句子 why do you think后面应该如何句子：why do you think he is running.后面能不能换成：he runs 为什么? he could be running for exercise分析一下句子结构 特别是could be running How fast he is running同意转换How fast he is running=_______ _______ fast _______he is. 选用适当的词填空,使句子前后意思一致Look!Xiaofeng is getting the ___(badminton,baton).He is running with it now he is a running star.(改一般疑问句)（ ）（ ）a running star?