why bolt run so fast?
___(not run) so fast
_____(not run)so fast
you shouldn't have run so fast
run not so fast as 与doesnt run so fast as区别
why is western fast-food so popular
run fast
是don't run so fast 还是no running so fast?
The boy dosen`t run so fast as the bus.
I have never seen anyone run so fast----______David go.
I've never seen anyone run so fast...
He cannot run so/as fast as you.
We run so fast as to catch the last bus可以说成We run fast so as