单句改错

(1)Although she didn’t mention any names, but everyone knew who she referred to.     

(2)Pretended to look frightened, I backed towards the door.  

(3)Laughter is the sun drives winter from the human face.    

(4)Yawning, in most case, makes people appear to be uninterested.   

(5)Little Mary felt cold, so she stood closely to her mother.

(6)What it was to become were uncertain until the police officer came back.

(7)Towards nightfall Henry found himself carrying out to sea by a strong wind.

(8)Who is the last one to leave the classroom is required to turn off the lights.

(9)With time went by, he began making films.

(10)The waiter found astonishing that Henry was a rich man dressed in dirty clothes.