--- The news that the scientists in China are trying the ways to reduce the fog and haze was? ---- Top notch! Never have I seen _____ before。
It was getting dark; I found a car _____ in a pool by the side of the road.
To answer correctly is more important than _____.
He looked around and caught a man _____ his hand into the pocket of a passenger.
And there, almost _____ in the big chair, sat her little brother, who never had to be told to keep quiet.
_____ the front door _____, he had to enter the room through the back door.