She sat at the corner of the room, (look) ______ miserable.

A．He changed his plan suddenly.
B．He wanted to go to the concert.
C．He arrived too late to hear the concert.
D．He didn’t have enough money to go to the concert.

A．Air mail About three days.
B．It costs two dollars.
C．Well, it is about 1 000 miles from here.
D．It’s better to take a bus.