Shwetha...i was also noticing the same problem as nobody is quite interested in answering others question ....but as i am in 12 i can answer your question...
Ans:- mrs hall was shocked because the face of the guest was completely covered with white bandages and the only thing visible was his pink nose and his hollow mouth...
Shwetha i would suggest you to download myCBSEguide...as far its a good app where you will get all the solution as much as you want...and dont have to wait for someone to answer...