What a dangerous scene it is!How dangerous the scene it is!

What a dangerous scene it is!How dangerous the scene it is! How t___________ it is to do such a dangerous thing! ( )football in the street.It is dangerous. careful It is dangerous .能否写成Carefully It is dangerous . it is dangerous ( ) off fireworks it is not only the place for shooting scene but also a copar It's a common scene --- dangerous it is to play football on a busy road A how B ------dangerous it is to ride fast on a busy street!A What B It is very dangerous to swim in the river.What can stop them It is dangerous inside the lift when it is on the fire.It is If the traffic is moving,it‘s dangerous选哪个?