是run fast enough还是 run enough fast

Run quickly enough和run fast enough He didn't run( )catch up with me.A.fast enough B.enough fast run fast He can run fast enough to catch up with us.这句话的结构是什么?主谓宾是那些? He didn't run ____ to catch the early bus.A enough fast Tom didn`t run fast enough to catch up ____ them Jack didn`t run fast enough to catch up with the other runne Who can run fast? Itcan run fast. run fast是什么意思 My brother ()(run)fast. H_ run wery fast.