allmenneedair,完形填空Allmenneedair.We__1__inairfromoutsideour__2__everybreath。Whenyouputyourfaceunderwateryoucannotkeepit__3__long.Aswimmercannotswimunderwaterverylong.Heneeds__4__.Agoodswimmermayswimwith
allmenneedair,完形填空
Allmenneedair.We__1__inairfromoutsideour__2__everybreath。Whenyouputyourfaceunderwateryoucannotkeepit__3__long.
Aswimmercannotswimunderwaterverylong.Heneeds__4__.Agoodswimmermayswimwithhisfaceinthewaterifhekeepsturninguphis__5__totakeabreaththroughhismouth.Ifhegoesdownunderthewater,he__6---comeupforaireverytwentyorthirty__7__.
Hedoesnottakeinairthroughhisnoseunderthewater__8__watercouldgetinthroughhisnosewiththeairandgotohislungs.__9__waterinhislungs,aman__10__goonliving.