Running is very good（ ）your legs.A to B for C about选哪个?

Running is very ____(easy) Running is very good（ ）your legs.A to B for C about选哪个? mike is good at running 同义句 he is good at running?怎么提问 tom is running very fast 改为感叹句 Tom is running very fast 改为感叹句 Bob is running very fast改为感叹句 Bill is a great running star.He is very well.中,running为什么要用running? English is very good? They likes running.The cat like fish.My sister sThey likes running.The cat like fish.My sister studys very hand.You and I am good friend.ben and peter is good friends.怎么改错 tom is a running star.she is a good runner. Limei likes English evry much,but I am very good _a____ maths.Running is _m___ boring than playinLimei likes English evry much,but I am very good _a____ maths.Running is _m___ boring than playing basketball.Playing football in the street is very _d__ Your English is very good!( ). sing is very good?welll? your picyure is very good that is very good . thank [ ] very much Peter is good at running.（同义句转换） is,good,running,for,you（.）连词成局